4G Long Term Engine Reliability Poll
#1
Cruisin'
Thread Starter
4G Long Term Engine Reliability Poll
I have a 2013 SH-AWD 6MT with 77k miles on it. LOVE this car. But I'm looking at a 2nd engine replacement. Cylinder 4 and 5 misfires due to visible "abnormality" when viewed with a camera. Got worse after a valve adjustment. They suspect a bad cylinder. I'm trying to decide if I let the dealer buy it back or roll the dice on another replacement. Wondering how others' engines are holding up. Can you please answer the following?
Year:
Mileage:
Engine (3.5 or 3.7):
Trans (Auto or 6MT):
Oil Consumed per 3k miles:
Past or Current Engine Issues:
Thanks all!
Year:
Mileage:
Engine (3.5 or 3.7):
Trans (Auto or 6MT):
Oil Consumed per 3k miles:
Past or Current Engine Issues:
Thanks all!
#2
Burning Brakes
Year: 2012
Mileage: 51,500
Engine (3.5 or 3.7): 3.7 SH-AWD
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: No oil loss detected between 6-7k mile changes
Past or Current Engine Issues: No issues
Wife's car - she drives it spirited but not crazy. Car is garaged regularly and used daily. Lives in NH, driven both winter and summer..
Mileage: 51,500
Engine (3.5 or 3.7): 3.7 SH-AWD
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: No oil loss detected between 6-7k mile changes
Past or Current Engine Issues: No issues
Wife's car - she drives it spirited but not crazy. Car is garaged regularly and used daily. Lives in NH, driven both winter and summer..
#3
Another replacement? So this is engine #2 already?
In any case...
Year: 2010
Mileage: 201k KM = 125k Miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 5AT
Oil Consumed per 3k miles: I pour in a total of 3 quarts or so in between changes, which is 10,000km
Past or Current Engine Issues: None
In any case...
Year: 2010
Mileage: 201k KM = 125k Miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 5AT
Oil Consumed per 3k miles: I pour in a total of 3 quarts or so in between changes, which is 10,000km
Past or Current Engine Issues: None
#4
Cruisin'
Thread Starter
Another replacement? So this is engine #2 already?
In any case...
Year: 2010
Mileage: 201k KM = 125k Miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 5AT
Oil Consumed per 3k miles: I pour in a total of 3 quarts or so in between changes, which is 10,000km
Past or Current Engine Issues: None
In any case...
Year: 2010
Mileage: 201k KM = 125k Miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 5AT
Oil Consumed per 3k miles: I pour in a total of 3 quarts or so in between changes, which is 10,000km
Past or Current Engine Issues: None
#5
Drifting
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FWD 3.5L. I've had an engine replacement but it was own fault. Before that, it went 120K miles with no problems. The replacement has gone 60K miles with no problems. No noise, no oil burning, nothing.
#7
Year: 2012
Mileage: 105k
Engine (3.5 or 3.7): 3.5L
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: no detectable issue
Past or Current Engine Issues: None related to engine. General Maintenance. Sparks at 70k. Oil every time it says 5-10% left. Trans oil at 50k (dealer software update) and at 70k (re-checking jitter). Waterpump/TB/pully/tensioner at 105k.
Mileage: 105k
Engine (3.5 or 3.7): 3.5L
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: no detectable issue
Past or Current Engine Issues: None related to engine. General Maintenance. Sparks at 70k. Oil every time it says 5-10% left. Trans oil at 50k (dealer software update) and at 70k (re-checking jitter). Waterpump/TB/pully/tensioner at 105k.
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#10
Year: 2012
Mileage: 104k Miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6MT
Oil Consumed per 3k miles: 2-4qts prior to piston replacement.
Past or Current Engine Issues:
Rear camshaft replaced at 98K under extended CPO warranty, cam lobes were worn causing loud ticking noise.
Pistons replaced at 101k after completing oil consumption test at the dealer. Was showing well over 1qt per 1k miles and the dealer took care of me under the TSB/extended warranty (they just covered it, kept saying the TSB wasn't official yet, but Acura Corporate authorized it quickly).
Just completed 105k service (timing belt, water pump, tensioner and idlers, plugs, coolant, drive belt) and drivetrain fluids. Clutch is going strong still, but I try not to drive it too hard. No other issues except for a battery and brakes.
The camshaft and piston issues are alarming and if not covered by Acura I would probably have traded the car in to avoid it all, but everything was fully covered and feel like I got a bit of an extension on engine condition because a lot of gaskets and parts were replaced as part of these two repairs.
I would bail on it if you have a chance for the dealer to buy it out, that's a no brainier!
Mileage: 104k Miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6MT
Oil Consumed per 3k miles: 2-4qts prior to piston replacement.
Past or Current Engine Issues:
Rear camshaft replaced at 98K under extended CPO warranty, cam lobes were worn causing loud ticking noise.
Pistons replaced at 101k after completing oil consumption test at the dealer. Was showing well over 1qt per 1k miles and the dealer took care of me under the TSB/extended warranty (they just covered it, kept saying the TSB wasn't official yet, but Acura Corporate authorized it quickly).
Just completed 105k service (timing belt, water pump, tensioner and idlers, plugs, coolant, drive belt) and drivetrain fluids. Clutch is going strong still, but I try not to drive it too hard. No other issues except for a battery and brakes.
The camshaft and piston issues are alarming and if not covered by Acura I would probably have traded the car in to avoid it all, but everything was fully covered and feel like I got a bit of an extension on engine condition because a lot of gaskets and parts were replaced as part of these two repairs.
I would bail on it if you have a chance for the dealer to buy it out, that's a no brainier!
#11
Cruisin'
Thread Starter
@alxhastngs do you have the TSB number? I thought the oil consumption TSB was official earlier this summer. Did Acura authorize it because of the CPO warranty? Wondering if I would have a harder time without a warranty.
I would take the buyout if they would just pay it off, but I'll have to trade into another used car on their lot. And unfortunately the closest 6MT is 350 miles away...
I would take the buyout if they would just pay it off, but I'll have to trade into another used car on their lot. And unfortunately the closest 6MT is 350 miles away...
#12
TSB is 18-009, however my dealer was very adamant about saying that it wasn't "official" yet, and there was no official warranty extension yet. Not sure if they are playing hardball or not, but they were going along with it and got the problem resolved so I did not care. You can't really seem to find that TSB under the typical TSB look up
They were very specific about solving the cam shaft issue under my CPO warranty, and were able to push off the oil consumption because it was covered otherwise. It sounds like they are taking care of most people on a case by case basic, but if you have low miles it seems like no problem at all. I have see a few guys on the facebook group with 2010s and 150K plus miles being offered goodwill repairs where Acura is covering something like 80% of the piston replacement, which seemed pretty alright to me.
They were very specific about solving the cam shaft issue under my CPO warranty, and were able to push off the oil consumption because it was covered otherwise. It sounds like they are taking care of most people on a case by case basic, but if you have low miles it seems like no problem at all. I have see a few guys on the facebook group with 2010s and 150K plus miles being offered goodwill repairs where Acura is covering something like 80% of the piston replacement, which seemed pretty alright to me.
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thorpedo (10-27-2018)
#13
Cruisin'
Thread Starter
Oild Consumption TSB Files
I don't remember where I dug these up but here's the oil consumption and cylinder issue TSB files. It's good to see Acura taking it seriously.
#14
Year: 2012
Mileage: 110,000 miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: 2 - 3 qts
Past or Current Engine Issues: Fairly loud noise coming from engine during cold start, after reading below assume its the camshaft. Also due for timing belt, water pump and new rotors/pad. Good chance
I will be dumping this thing soon. I would steer anyone away from purchasing a 3.7L TL, absolute bullshit that Acura allowed this to happen. Last Acura for me.
Mileage: 110,000 miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: 2 - 3 qts
Past or Current Engine Issues: Fairly loud noise coming from engine during cold start, after reading below assume its the camshaft. Also due for timing belt, water pump and new rotors/pad. Good chance
I will be dumping this thing soon. I would steer anyone away from purchasing a 3.7L TL, absolute bullshit that Acura allowed this to happen. Last Acura for me.
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revray (11-04-2018)
#15
Intermediate
Year: 2010
Mileage: 116,750
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: TBD
Past or Current Engine Issues: Engine replaced at 61K due to oil consumption under factory warranty...just purchased car in September from original owner. Changed oil to Penzoil Ultra Platinum 5W-30, so far no oil consumption but only time (and miles) will tell. Other than that car runs like new
Mileage: 116,750
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: TBD
Past or Current Engine Issues: Engine replaced at 61K due to oil consumption under factory warranty...just purchased car in September from original owner. Changed oil to Penzoil Ultra Platinum 5W-30, so far no oil consumption but only time (and miles) will tell. Other than that car runs like new
#16
Cruisin'
Thread Starter
I count 6 out of 7 3.7s with excessive oil consumption at some point. No wonder they discontinued it. I’m definitely (sadly) leaning towards dumping it.
#18
Cruisin'
Thread Starter
I saw the issues and took the same chance. SH-AWD is just short of magical. But hasn't worked out for me unfortunately. It's going back to the shop tomorrow, I'll reply back with an update.
#19
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Join Date: May 2003
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The J37's in my '13 MDX and now my '11 RL don't burn any oil.
What kind of highway mileage are you J37/SH-AWD users getting? I see 29 mpg quite often which is impressive IMO.
What kind of highway mileage are you J37/SH-AWD users getting? I see 29 mpg quite often which is impressive IMO.
#20
Cruisin'
Thread Starter
That's encouraging. I'd love to believe it's a fluke. I got 20 mpg in my first engine which burned 1-2 quarts / 5k miles. 22 mpg in the second with much less oil consumption.
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PEACE56 (02-13-2019)
#21
I get about 13L/100KM (around 18MPG), but 2/3rds of my daily drive is in very heavy stop and go. I believe Toronto was rated worst traffic in all of North America? Top 5 for sure.
Last edited by Teddybear; 11-01-2018 at 11:39 AM.
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Ken1997TL (11-01-2018)
#23
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They're officially listed as silicon aluminum.
Last edited by Ken1997TL; 11-01-2018 at 01:46 PM.
#24
Senior Moderator
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Ken1997TL (11-02-2018)
#26
Senior Moderator
#27
Is there a warranty extension on this issue? Like the torque converter extension?
#28
2010 TL base 3.5 fwd.
227,000 miles.
Timing belt, water pump, coolant change every 80,000 to 100,000 miles.
Mobil 1 hi mileage synthetic oil + filter change every 4,000 - 6,000 miles. I wait until the oil appears dark on the dipstick. At the last valve adjustment, the inside of the valve covers were like brand new. Absolutely no oil consumption.
Transmission fluid 3 qt change every other oil change.
zero engine or transmission problems.
This is is my third TL, and the other two ran for 375,000 and 425,000 before the transmissions failed. At these mileage points it is not worth replacing the transmissions as the value of the vehicle is minimal.
227,000 miles.
Timing belt, water pump, coolant change every 80,000 to 100,000 miles.
Mobil 1 hi mileage synthetic oil + filter change every 4,000 - 6,000 miles. I wait until the oil appears dark on the dipstick. At the last valve adjustment, the inside of the valve covers were like brand new. Absolutely no oil consumption.
Transmission fluid 3 qt change every other oil change.
zero engine or transmission problems.
This is is my third TL, and the other two ran for 375,000 and 425,000 before the transmissions failed. At these mileage points it is not worth replacing the transmissions as the value of the vehicle is minimal.
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losiglow (11-02-2018)
#29
Cruisin'
Thread Starter
2010 TL base 3.5 fwd.
227,000 miles.
Timing belt, water pump, coolant change every 80,000 to 100,000 miles.
Mobil 1 hi mileage synthetic oil + filter change every 4,000 - 6,000 miles. I wait until the oil appears dark on the dipstick. At the last valve adjustment, the inside of the valve covers were like brand new. Absolutely no oil consumption.
Transmission fluid 3 qt change every other oil change.
zero engine or transmission problems.
This is is my third TL, and the other two ran for 375,000 and 425,000 before the transmissions failed. At these mileage points it is not worth replacing the transmissions as the value of the vehicle is minimal.
227,000 miles.
Timing belt, water pump, coolant change every 80,000 to 100,000 miles.
Mobil 1 hi mileage synthetic oil + filter change every 4,000 - 6,000 miles. I wait until the oil appears dark on the dipstick. At the last valve adjustment, the inside of the valve covers were like brand new. Absolutely no oil consumption.
Transmission fluid 3 qt change every other oil change.
zero engine or transmission problems.
This is is my third TL, and the other two ran for 375,000 and 425,000 before the transmissions failed. At these mileage points it is not worth replacing the transmissions as the value of the vehicle is minimal.
#30
Cruisin'
Thread Starter
When scouring the forums a few months ago I found a few that were able to get a warranty extension to 100k miles. I have submitted multiple cases with Acura directly and worked with 2 different Acura dealers and have not been able to get the same results. I think the best we can hope for is to go the oil consumption test route and hope the dealer will go to bat with Acura for good will assistance.
#31
Year: 2011
Mileage: 140,000 miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: 1.5-2 qts
Past or Current Engine Issues: Oil pump seal @ 95k. Slight whine at times, but I'm not sure that it's the propeller shaft.
No other issues. I check and add oil once or twice a month, not a deal breaker for this car. SH-AWD is incredibly competent.
Mileage: 140,000 miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: 1.5-2 qts
Past or Current Engine Issues: Oil pump seal @ 95k. Slight whine at times, but I'm not sure that it's the propeller shaft.
No other issues. I check and add oil once or twice a month, not a deal breaker for this car. SH-AWD is incredibly competent.
#33
First time I'm hearing about this issue. I've considered a 6MT 4G before, but now I'm about to cross it off the list permanently.
#34
Year: 2012
Mileage: 130,000
Engine (3.5 or 3.7): 3.5 (Front Wheel Drive)
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: None
Past or Current Engine Issues: None
I purchased the vehicle with 14 miles.
Battery died after 2 years. (Replaced under warranty)
All scheduled maintenance completed by Acura as recommended.
Requested transmission filter change because of noise mentioned in TSB. (I requested and was paying for it, still had to argue to have it done, go figure)
105K (Timing Belt - Expensive, but if you plan on keeping the car, do it when scheduled)
I have used regular fuel since 35K miles without issue or notice in performance change. (90% highway miles @ 70 to 80 mph)
*** Mobile 1 Full Synthetic used for all oil changes since 40K. (No leaks, No Oil Consumption)
*** Continental DWS Tires since the original equipment Michelin MXMM (Sucked in snow). The Continentals are a fantastic, have gotten close to 50K out of each set, will be doing 3rd set sometime this/next yr, depending on snow.
*** Self maintained: Complete brake fluid change at 120K, replaced all bleeder screws as a couple had started to corrode and were plugged.
*** Self Maintained: Brakes/Rotors - Use NAPA premium pads/rotors.
Car drives like the first day I purchased. I would like a new car, but cannot justify the low trade in price I have been offered. I guess I will consider a replacement when I hit 210K and need to replace timing belt again. (Expensive Service)
Good luck all - Love the car, not impressed with the newer Acura products, will be moving to Infiniti when time to replace this vehicle. (Ease of maintenance, Q50 has same engine as my 370Z, All other service is easy for self maintainer. I choose to do outside of warranty because I get to spend the time in the garage)
Mileage: 130,000
Engine (3.5 or 3.7): 3.5 (Front Wheel Drive)
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: None
Past or Current Engine Issues: None
I purchased the vehicle with 14 miles.
Battery died after 2 years. (Replaced under warranty)
All scheduled maintenance completed by Acura as recommended.
Requested transmission filter change because of noise mentioned in TSB. (I requested and was paying for it, still had to argue to have it done, go figure)
105K (Timing Belt - Expensive, but if you plan on keeping the car, do it when scheduled)
I have used regular fuel since 35K miles without issue or notice in performance change. (90% highway miles @ 70 to 80 mph)
*** Mobile 1 Full Synthetic used for all oil changes since 40K. (No leaks, No Oil Consumption)
*** Continental DWS Tires since the original equipment Michelin MXMM (Sucked in snow). The Continentals are a fantastic, have gotten close to 50K out of each set, will be doing 3rd set sometime this/next yr, depending on snow.
*** Self maintained: Complete brake fluid change at 120K, replaced all bleeder screws as a couple had started to corrode and were plugged.
*** Self Maintained: Brakes/Rotors - Use NAPA premium pads/rotors.
Car drives like the first day I purchased. I would like a new car, but cannot justify the low trade in price I have been offered. I guess I will consider a replacement when I hit 210K and need to replace timing belt again. (Expensive Service)
Good luck all - Love the car, not impressed with the newer Acura products, will be moving to Infiniti when time to replace this vehicle. (Ease of maintenance, Q50 has same engine as my 370Z, All other service is easy for self maintainer. I choose to do outside of warranty because I get to spend the time in the garage)
#35
Year: 2012
Mileage: 110,000 miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: 2 - 3 qts
Past or Current Engine Issues: Fairly loud noise coming from engine during cold start, after reading below assume its the camshaft. Also due for timing belt, water pump and new rotors/pad. Good chance
I will be dumping this thing soon. I would steer anyone away from purchasing a 3.7L TL, absolute bullshit that Acura allowed this to happen. Last Acura for me.
Mileage: 110,000 miles
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): 6 MT
Oil Consumed per 3k miles: 2 - 3 qts
Past or Current Engine Issues: Fairly loud noise coming from engine during cold start, after reading below assume its the camshaft. Also due for timing belt, water pump and new rotors/pad. Good chance
I will be dumping this thing soon. I would steer anyone away from purchasing a 3.7L TL, absolute bullshit that Acura allowed this to happen. Last Acura for me.
Hangar Bearing issues with the AWD drive is an issue, also have read much about transmission issues with newer than 2014 models.
I can't believe how much oil your car uses. I am thankful mine has never done that. Knock on wood, all of my vehicles have never used oil. (Except for a 78/79 Honda that was salvaged and welded together. That used a quart per gas tank, never changed it. It was good to be 18!
#37
Drifting
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Failing alternators seem to be more common than I'd expect on these cars. Mine didn't go until 170K miles but plenty have had theirs go well before 100K.
I didn't bother going Denso/OEM for the replacement. Just picked up a Duralast from Autozone. If it dies, at least it has a lifetime warranty
I didn't bother going Denso/OEM for the replacement. Just picked up a Duralast from Autozone. If it dies, at least it has a lifetime warranty
#38
Cruisin'
Thread Starter
Last Update
Unfortunately I ended up trading in the car. Needed another new engine, this time due to an issue with the cylinders. Based on what I've heard on this forum I don't think the 3.7 + 6MT combination can be trusted for long term reliability. Too bad too, one of the last great affordable 6MT AWD sedans!
#39
Burning Brakes
Year: 2013
Mileage: 81000 miles
Engine (3.5 or 3.7): 3.5
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: 1.5-2 qts
Past or Current Engine Issues: No engine issue.
Other issues: currently on 3rd battery. Recently new front axles, new hood struts.
Mileage: 81000 miles
Engine (3.5 or 3.7): 3.5
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: 1.5-2 qts
Past or Current Engine Issues: No engine issue.
Other issues: currently on 3rd battery. Recently new front axles, new hood struts.
#40
Hello, 3rd TL and member since 2013, but first post. Posts like these help save people money, and had I known about the transmission issues in the 2002s, or dashboard cracks in 2005s or cam issue in the 12s (experienced all three) I might have made different decisions...
Year: 2012
Mileage: 87K
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: I honestly don't know, had no idea there was an issue, but religiously maintained per minder since new. However, see below...
Past or Current Engine Issues:
85K alternator ~$750
87K worn lobe and pitted rockers in cylinder 1 ~$2200
50K shuddering tranny ~Dealer tranny service, software update
80K Leaking axle seal ~$207
87K OEM battery died a while ago and was replaced with Optima for a few years, Optima just died, dealer put OEM back in ~$190
Everything else has been regular maintenance, i.e., filters, tires, brake pads, rotors resurfaced, fluids changed, air bag recall, busted fog light, and the USB doesn't work anymore for some reason....
Year: 2012
Mileage: 87K
Engine (3.5 or 3.7): 3.7
Trans (Auto or 6MT): Auto
Oil Consumed per 3k miles: I honestly don't know, had no idea there was an issue, but religiously maintained per minder since new. However, see below...
Past or Current Engine Issues:
85K alternator ~$750
87K worn lobe and pitted rockers in cylinder 1 ~$2200
50K shuddering tranny ~Dealer tranny service, software update
80K Leaking axle seal ~$207
87K OEM battery died a while ago and was replaced with Optima for a few years, Optima just died, dealer put OEM back in ~$190
Everything else has been regular maintenance, i.e., filters, tires, brake pads, rotors resurfaced, fluids changed, air bag recall, busted fog light, and the USB doesn't work anymore for some reason....