Do you use regular gas(#87) to fill up 2016+ Acura Rdx?
#42
Manuel got drunk in my house and raped one of my chickens
He said the salesman told him it was okay and to go ask in the front office
I executed that chicken and fried it up
Salesman ate every piece
Ain't that right @cu2wagon?
He said the salesman told him it was okay and to go ask in the front office
I executed that chicken and fried it up
Salesman ate every piece
Ain't that right @cu2wagon?
I'm just here for the stimulating discussions of what and where to find data in printed documents...
#43
#44
#46
#48
What's funny is you ninnys talking about water in the tank when water injection is actually a tried and true method in use in many combustion engine applications. There was even a few enthusiasts to do it in their Acuras. Regular water of course.. premium water is for suckers.
#50
What's funny is you ninnys talking about water in the tank when water injection is actually a tried and true method in use in many combustion engine applications. There was even a few enthusiasts to do it in their Acuras. Regular water of course.. premium water is for suckers.
#51
The following users liked this post:
horseshoez (07-20-2017)
#54
I use premium (91 octane) witth no ethanol added. Not taking the chance with regular as it may lower performance or damage the engine in the long run. There's a reason 91 octane minimum is recommended and it helps the rdx to be among the fastest accelerating in its class.
#56
What rocky meant to say is no 9/10 girl going to fuck with a peasant who uses 87 octane.
Could you imagine seeing a guy in nicely pressed Haggars purchased at Costco, pumping regular gasoline in their luxury RDX Advance Tech Platinum Plus?
Could you imagine seeing a guy in nicely pressed Haggars purchased at Costco, pumping regular gasoline in their luxury RDX Advance Tech Platinum Plus?
#57
I use premium (91 octane) witth no ethanol added. Not taking the chance with regular as it may lower performance or damage the engine in the long run. There's a reason 91 octane minimum is recommended and it helps the rdx to be among the fastest accelerating in its class.
The following users liked this post:
wsw (10-27-2019)
#58
You can then remove the heads and pistons, show us the valve and head surface, piston surface, and ringlands.
At least monitor timing and show us the log of timing, rpm, knock sensor output, that shows that timing isn't pulled over load due to knock.
Go ahead, we'll wait. #casualtuesday
#60
Ok - then riddle me this. How is it the identical motor with the same output and compression ratio is used in the Accord V6 and requires 87? I am waiting for an answer other than "the manual recommends 91 or better"....
#62
Telling customers that the car can use regular vs telling them it needs premium sells..
Marketing asks the chief engineer.. will the car perform on regular.. technically it can.
You're not going to notice but a minor dip in fuel efficiency and a some unmissed hp.
But the consequence of that lost efficiency is unburnt fuel getting thrown down the pipe.
There's no magical sensor to tell the car to pull timing because there's regular in the tank.
Knock occurs and timing is pulled. Knock is bad. Will your car survive? of course..
But if you expect to drive your car into the ground, that will be sooner than later.
Some of us hold onto our cars for the long haul.
Marketing asks the chief engineer.. will the car perform on regular.. technically it can.
You're not going to notice but a minor dip in fuel efficiency and a some unmissed hp.
But the consequence of that lost efficiency is unburnt fuel getting thrown down the pipe.
There's no magical sensor to tell the car to pull timing because there's regular in the tank.
Knock occurs and timing is pulled. Knock is bad. Will your car survive? of course..
But if you expect to drive your car into the ground, that will be sooner than later.
Some of us hold onto our cars for the long haul.
#63
Telling customers that the car can use regular vs telling them it needs premium sells..
Marketing asks the chief engineer.. will the car perform on regular.. technically it can.
You're not going to notice but a minor dip in fuel efficiency and a some unmissed hp.
But the consequence of that lost efficiency is unburnt fuel getting thrown down the pipe.
There's no magical sensor to tell the car to pull timing because there's regular in the tank.
Knock occurs and timing is pulled. Knock is bad. Will your car survive? of course..
But if you expect to drive your car into the ground, that will be sooner than later.
Some of us hold onto our cars for the long haul.
Marketing asks the chief engineer.. will the car perform on regular.. technically it can.
You're not going to notice but a minor dip in fuel efficiency and a some unmissed hp.
But the consequence of that lost efficiency is unburnt fuel getting thrown down the pipe.
There's no magical sensor to tell the car to pull timing because there's regular in the tank.
Knock occurs and timing is pulled. Knock is bad. Will your car survive? of course..
But if you expect to drive your car into the ground, that will be sooner than later.
Some of us hold onto our cars for the long haul.
#64
It's the way gasoline works, basically a series of controlled explosions. The higher octane gasoline is good for the catalytic converter and yields longer burn duration. You get optimal performance and torque. Using a lower grade fuel will lower the performance and cause knocking which can damage the engine over time. Premium fuel is also more likely to contain no ethanol
#65
If what you were postulating was true we would be hearing about issues by now. The 3.5 V6 has been used for many years and many cars have well over 100k. We would have a lot of actual evidence of problems if it were happening. I have yet to see one thread on V6 engine issues caused by 87 octane gas.
#66
It's the way gasoline works, basically a series of controlled explosions. The higher octane gasoline is good for the catalytic converter and yields longer burn duration. You get optimal performance and torque. Using a lower grade fuel will lower the performance and cause knocking which can damage the engine over time.
Depends upon where you live; here in New England, virtually all fuel contains ethanol, regardless of the AKI.
#67
If what you were postulating was true we would be hearing about issues by now. The 3.5 V6 has been used for many years and many cars have well over 100k. We would have a lot of actual evidence of problems if it were happening. I have yet to see one thread on V6 engine issues caused by 87 octane gas.
This community is mostly enthusiast who use premium religiously.
You also assume the community here are into keeping cars past 100k.
Most do not.
But there are several threads about failed catalytic converters, knocking, pinging..
a few with pics of knock damage on their pistons, burned valves, lost ring seal, etc.
One or two rods thrown out the bottom of the engine.
You can find the same thing from board to board.
Were they all caused by 87 / bad gas.. that's tough to prove.
But it's been proven that timing, octane, and load are all associated.
Just basic thermo proves that an object under a higher temp curve will fail sooner.
The fact is.. if the engine is pulling timing even on 93.. running 87 isn't a great idea.
Everything runs hotter, so more fuel is thrown down to try to keep things in check.
If you're leasing or going to dump your vehicle on some chump when warranty goes out, go for it.
#68
I've got to say, it's certainly a bit weird that the requirement for the J35Z2 engine in the Accord is regular while it's premium in the RDX. Maybe it's because engine is pushed harder in the RDX since it's a larger vehicle. Looks to be about 400lbs. or so heavier than the Accord. I'm sure it also had to do with marketing. Nearly every luxury brand, even an entry level luxury brand like Acura, recommends premium in their vehicles. I dunno though. It's pretty well established that knocking will occur with the TL 3.5 with the J35Z6. That one has a 11.2:1 compression ratio. The J35Z2 has a 10.5:1. That's not all that much different. I think if I had either an Accord or RDX I'd probably use premium. But I think I probably push my cars a bit harder than the average driver.
#69
You assume the community here consists of all Acura / Honda owners.
This community is mostly enthusiast who use premium religiously.
You also assume the community here are into keeping cars past 100k.
Most do not.
But there are several threads about failed catalytic converters, knocking, pinging..
a few with pics of knock damage on their pistons, burned valves, lost ring seal, etc.
One or two rods thrown out the bottom of the engine.
You can find the same thing from board to board.
Were they all caused by 87 / bad gas.. that's tough to prove.
But it's been proven that timing, octane, and load are all associated.
Just basic thermo proves that an object under a higher temp curve will fail sooner.
The fact is.. if the engine is pulling timing even on 93.. running 87 isn't a great idea.
Everything runs hotter, so more fuel is thrown down to try to keep things in check.
If you're leasing or going to dump your vehicle on some chump when warranty goes out, go for it.
This community is mostly enthusiast who use premium religiously.
You also assume the community here are into keeping cars past 100k.
Most do not.
But there are several threads about failed catalytic converters, knocking, pinging..
a few with pics of knock damage on their pistons, burned valves, lost ring seal, etc.
One or two rods thrown out the bottom of the engine.
You can find the same thing from board to board.
Were they all caused by 87 / bad gas.. that's tough to prove.
But it's been proven that timing, octane, and load are all associated.
Just basic thermo proves that an object under a higher temp curve will fail sooner.
The fact is.. if the engine is pulling timing even on 93.. running 87 isn't a great idea.
Everything runs hotter, so more fuel is thrown down to try to keep things in check.
If you're leasing or going to dump your vehicle on some chump when warranty goes out, go for it.
It is similar to my '11 Tacoma with a 2,7 L 4 banger. Toyota specs it for 5k oil change intervals. The same truck with the 4.0 V6 has a 10k interval. Both use the same 0w20 full synthetic oil. Again, makes no sense to me. I do 10k intervals on mine with a filter change at 5k. No issues in 60k miles and it burns no oil at all.
As an aside - I am not leasing my RDX either. Plan to drive it for 5-6 years if it holds up.
Last edited by chickdr; 07-25-2017 at 11:53 AM.
#71
Again, lots of speculation here. As an aside I am not leasing my RDX either. I use 87 as there is no logical reason not to with the Accord V6 recommendations. Could you point me to any threads on the 2013-18 RDX or 9th gen Accord V6 with engine failures due to use of 87 octane gas?
#76
No more than pointing to any threads that show that red meat causes colon cancer or BPA from plastic bottles causes infertility. Well, I think octane ratings are probably more well established than those. Still, the point is the same. If there's a well established chance, even without definitive proof, I'd say err on the side of caution. However, it's different for each individual. If I drop something on the floor I'll still eat it. And I drink/eat food with artificial sweeteners. I might get sick from germs that get on the food or get cancer from artificial sweeteners but it's a risk I'm willing to take. If you're willing to take the risk, even if it's minor or perceived, from using regular fuel, go right ahead. You're right. It might have absolutely no effect. But maybe it will.....
#77
I'm just postulating really. I could do the research to get info on those items but I'm not really motivated I'd like to think it's more than marketing that caused the engineers to indicate premium for the RDX.
#79
True. I wonder if there are differences between the RDX and Accord that might contribute. Specifically regarding heat. Does the RDX have a transmission fluid cooler vs. the Accord? That would increase the load on the cooling system potentially making the RDX engine run a bit hotter. Is the cooling system any different between the two? Possibly more efficient in the Accord for various reasons? The condenser for the AC may also play into it. The condenser on my TL is huge. It's the same size as the radiator which probably explains why the AC works so awesome in the TL. . The condenser in my old accord was about half the size of the radiator, which isn't uncommon in many cars. I can't speak to the 8th gen Accord however. A larger condenser would increase AC efficiency but also increase heat load on the car. More heat = more prone to knock. Also, like I mentioned, the RDX is heavier. The likelihood of engine load being higher with the RDX is a likely component. Higher engine load also increases the likelihood of knock.
I'm just postulating really. I could do the research to get info on those items but I'm not really motivated I'd like to think it's more than marketing that caused the engineers to indicate premium for the RDX.
I'm just postulating really. I could do the research to get info on those items but I'm not really motivated I'd like to think it's more than marketing that caused the engineers to indicate premium for the RDX.
One thing to keep in mind vis-à-vis the A/C condenser/engine temperature relationship is the efficiency of the radiator. If the radiator is large/efficient enough to hold engine temperature constant at the thermostat's rated temperature for the conditions you drive in, then the condenser will have no effect on detonation or any other engine lifespan limiting conditions.
Said another way, if the thermostat in your car is set to 190°F, the odds of the heat from the A/C condenser causing the coolant temperature to exceed that is pretty remote.
Last edited by horseshoez; 07-25-2017 at 01:37 PM.
#80