Out of curiosity, what kind of gas mileage are you guys getting? Mine is terrible. 291 miles to a tank? That's roughly 17 mpg! I just turned 75k so I guess its time for some maintenance. I dont know when the timing belt was done and after having a Prelude break a timing belt, I dont want to rebuild the head on the TL. Should I be worried about replacing it now or wait til 100k? What other maintenance items should i address?

 

the 2nd gen TL's owners manual indicates 105k miles or 7 years for the timing belt. which ever comes first. I think you hit that 7 year mark, long ago.

Also, the 2nd gen trannies are very outdated. the '99 is an archaic 4 speed. the other years get one more gear, but the gearing is still horrible for gas mileage.

 

I take the highway to work and am averaging about 30mpg's with the AV6. That's over the past 3 tanks I've put in it since swapping the tranny.

 

Wow 30 mpg? My AV6 is holding up great but the gas mileage sucks. I tried some stuff called RXP with no success. Prior to my next oil change, I plan on running the seafoam to clean the crap out and running synthetic oil as I have in all my cars. Im trying to decide if shouild shell out 40 for a K&N if that well even make much of a difference. The more obvious maintenance item is fuel filter. With my car only at 75 I am assuming it sat in someones garage for months/years so Im sure the items listed above can only help with my mpg. Thanks for the inputs!

 

sounds like you're just throwing stuff at it.

I wouldnt just throw stuff at it.

air filters have no effect on gas mileage for modern cars.
because our ECU controls air fuel ratios and will ALWAYS keep it constant.

you should really address the timing belt and water pump tho.
you can also check the IAVC and EGR valves to make sure they are clean and free of carbon deposits.
run a premium fuel as it has cleaners in it and will clean your injectors, thus proving injector cleaner a waste of money and time.

 

If ya do a lot of stop and go city driving......along with the cold weather, mpg may be normal for conditions.

Have the T-belt checked and replace it if in any doubt.

Try cleaning the TB intake and EGR passageways, install new NGK's and check tire's pressure.

 

Have to disagree I´m quite confident my AEM V2 gave me some MPGs = 3 at least.. Air filters create less restriction which in theory should ease the work of the engine regardless of what the ECU do to control Ignition.

 

because I like to debate...

and how do you know you kept ALL your variables the same!? road conditions, weather conditions, gas conditions, they all change.

the one thing we know is constant is air/fuel ratio. it always stays the same no matter what. sure, its breathing more air, but it quickly gets compensated by the ECU.

 

^^ If it gets more air (Kinda how a Turbo Works) then what its the result for the engine? More power right? and what that does for MPG if we keep our foot light? More MPGs right? right? Muahahahahaha

 

Question What weight is the oil currently in the engine?

Check all Tire pressures to spec (best place to start).
These cars don't have a fuel filter so Id worry more about spark plugs and intake manifold cleaning, Also have your brakes inspected to make sure they are not dragging. Mostly everything else is already mentioned.

If the air filter is dirty replace it.

 

If a .... oh, what's the use

 

butt butt, its not a turbo.

 

I was averaging around 23, pulled the intake & cleaned out the EGR passages & got a bump to closer to 26.

 

Yeah, all the little stuff that tends to get neglected and gunked up will eventually take it's toll on gas mileage. Thanks to the dear beloved and forgiving ECU......the car's motor will still run, but not always as efficiently as it was originally engineered to be operating under clean and ideal conditions, IMO.

Altzhemiers kicking the car's butt, but the ECU will keep the ole gal running. putt, putt...
A clean machine is a happy machine !!!

 

Same principle a turbo makes the engine work easier as it pushes the air into the engine.. An Intake makes the engine fight less for the suction of the air which in turn makes more power and speed up the RPM..


Why fight it? an Intake does makes more power, its not a +50HP bump but at least should be 5HP or less.. its not a game changer but it does help for MPGs in the big picture.

 

Yeah so using a product Ive had success with in the past is just "throwing stuff at it." That intake filter with proven results is "throwing away money" and I suppose that write up on the seafoam treatment is "wasting time." I guess I could start putting premium gas and see how that works if that wasnt what I already was using in the first place. Anyways I will try cleaning the TB intake & EGR passageways, and check the plugs when I do my next oil change.

 

Winter fuel also plays in to lower mpg`s. But I would as others suggested to clean the egr ports and check your plugs.


I`ve been driving a lot of city lately and have been getting close to 20 mpg.

 

I get upwards of 30mpg hwy with my 02 Tl-s, worst maybe 23 if more in a city environment

 

If you do a mainly highway driving 30 is where you should be.


But if you do mainly city driving 19-23 is not abnormal.

 

That is about what I get, recently gave my car a tune-up, with new air filter, NGK Iridium's and throttle body cleaning. In town I get around 22 and my best highway was 33, but 30 is average highway cruising for me. Currently have 133K on the clock.

It runs fine on midgrade, and fill up with 91 octane premium non-ethanol depending on availability and what part of the state I happen to be driving thru.

No complaints here, this is a great car, and 11 years old too!

 

Im averaging around 23-24 mpg when im highway driving i get around 26. Ive tried my hardest to get to 30 and no luck. Ive tried seafoam turns out my 3000 mile oil changes helped in keeping my engine clean. Something is definitely wrong 17mpg is way off the mark.

I would also mention to use NGK double platinum they are kinda pricey but its oem for our cars and burns better. I believe i paid about $13 a plug (killed me)

I also tend to use lucas oil from time to time. But to be honest i cant really tell you i noticed anything. That little wheel demo has me sold haha

Most importantly driving habits. everybody is different and everybody swears they are light on the gas. My wife drives my Explorer Sport trac since i have the further commute now and she can make that truck last a long time compared to me no matter how much i feel im babying it

 

^you're wasting your hard earned money by changing oil at 3k miles.

 

^^^ What he said. I'm at 270K and still use the Royal Purple 5-20 every 5K. Doesn't leak or burn a drop of oil. Like I said earlier I'm averaging 30 mpg highway right now and I'm actually expecting it to go up after the egr valve cleaning and seafoaming I did yesterday. The way to get the best fuel mileage, from what I've found out, is to use only premium and a few squirts of lucas fuel cleaner for every fill up. The AV6 also helps tremendously with gas mileage. The lower rpm's at highway speeds do wonders. I've also got the lower intake resonator removed and the K&N filter in it so she breathes easy. And to be perfectly honest I can probably do better than 30 since my drive to work is mostly highway and some city. I'm confident that pure highway driving I could average 32-34.

 

Good morning everyone! This is my first post and wantedto say thanks for all the shared knowledge. I have owned my 2000 TL for 2 weeksnow. It has 217,500 on the ticker and I bought it from my friend for a 1000bucks. The car had everything wrong with it, but with the help of this forum itis now clean and running fine with no codes. I drove it from North Carolina toNorfolk and back (450 mile round trip) and got 28.5 MPG. I still need to pullthe intake to do the EGR clean this weekend. It beats filling up my Titan allthe time and it rides like a dream. My wife and I have always had Hondas beforeand she is on her 10 year car, 2004 Honda Odyssey with 155,400 on the ticker.

So far this is thelist of fixes/maintenance performed:

1. Mobil One / filter change (it had two quarts ofburnt chocolate syrup in the motor)

2. Two new front tires

3. Front and back seats removed to be cleaned

4. Center console removed and cleaned

5. New rear view mirror (old one was cracked)

6. Replaced drivers side HID bulb (low beam)

7. Replaced all the tail lights and cleaned thetail light gaskets (water in the trunk)

8. New air filter

9. Flushed trans fluid with the stuff from theAcura dealership

10. Cleanedthe snot out of it and waxed it back to high gloss



List of things to still be completed:

1. New plugs

2. Timing belt/water pump (It was done at 102,00miles in summer of 2008)

3. Coolant flush (same time as timing belt)

4. Wire the factory sub to the aftermarket headunit (Best Buy wouldn’t do it for my friend)

5. New rear tires

6. Clean the EGR port (this weekend)


I will post pictures of all my work in another topic.

 

Well mileage all depends on where you live, what type of driving you are doing, how heavy your foot is, what type of fuel you are using. Is you MPG ALL hwy or is it mixed? Are you using premium? Are you in a colder climate, winter blends are still being used which will reduce mileage as will the much colder air.

 

I've done all the maintenance, EGR & intake cleaning, spark plugs, seafoaming, etc on my 02TLS. The engine runs great. For 100% in-town stop & go driving, mine averages about 17mpg. That's no expressway or highway driving, just totally around town. I don't baby the pedal, but I don't leadfoot it either very much-there are times I enjoy the acceleration.
Maybe I'm wrong, but I think that's about normal for 100% stop & go in-town only driving with a Type S. I get around 27-28mpg on the highway at 70-80mph.

I kind of think those reporting 20+mpg around town are including some highway/expressway driving.

 

You are both wasting your money but more you using Royal Purple for 5K.. I use Mobil 1 EP and change oil every 15,000miles since 100,000 miles ago you know how pristine is my engine these days? This clean:






Synthetic has come a long way to keep changing oil every 3-5K... Its 10K or more to justify the price tag.

 

Meh. I'm not taking any chances at my high mileage. I do it for peace of mind. I did a 10K change with the RP once and it worried the crap out of me the whole time. I do 10K on my 2010 Camry SE because it's rated for that but I don't think I ever will with the TL. I baby my baby and she takes care of me for sure.

 

I have over +195,000 Miles on that pic.. You are over thinking it! Shit if I wasted my money on Royal Purple I would make damn sure it lasted a long time in my engine specially since its the TOP OF THE LINE Oil! At 5K changes you can use any type of regular oil and get the same results... We pay premium for synthetic for the longer service life!!!


You just need to change filter at 7500 that's basically all I do to make it work at 15,000miles per change.. Change the filter and refill the half quart it takes and be happy! it will be okay I Promise

 

Anybody else go that long between changes on premium oils? I can't help but be a little skeptical.

 

I could probably start holding off till 5k but 10-15k i think not. Say what you want and show what you want. but thats not a chance i want to take im sitting at 179k now and hoping to get at the very least another 100k out of it. Truth be told unless i total it and it cannot be fixed i plan to keep it even longer than that. I drive my car hard especially now since the tranny is stuttering when i take off smooth. And since i do i treat it to oil changes often but ill hold off till 5k and see how the oil comes out. My fuel economy is not the greatest but im happy with it. Just giving a fellow TL owner an answer to his question which was how many miles are we getting and what do we do. He can do the math and opt to do what he wants at the end of the day. Good luck bringing your miles up

 

^ Ask fatty! I know he does it.

 

I'm sitting at 205,000 miles and it will probably do the same miles as any changing the oil at 5K intervals.. BUT I wont be wasting my money on perfectly usable oil every 5K and buying brand new oil to replace it.


So good luck wasting x3 times more money on doing the same I do...

 

I'm currently at 10,000+ miles on Mobile One EP

 

You must be a master technician for Acura!
I tell you what how about i sell you my "perfectly good usable oil" at 1/3 the price. And we all win lmao. Stop getting mad, its not that serious, relax.

 

Do you think I'm mad? haha don't think too much for yourself.

I don't have to be a "Master Technician for Acura" since we talking about >ENGINE OIL< seems to me your just speaking from hear-say and nothing from knowledge. Go read some about Synthetic oil then come back to me with an Argument.


Still you can always do what you want its your engine after all... But don't think for a second you are doing any good changing oil at 5K regardless of the car, Engine Oil is Engine Oil..

 

teggy, skirmich is a lot like me. we both like to hammer our points to death!


welcome aboard Teggy!!!!

 

^ I see that! and I welcome that but this isn't a democracy hahaha..
Facts are Facts..

I´m showing a picture of an engine with 100,000miles worth of 15,000 miles change intervals and still want to refuse the fact it doesn't have a single hint of deposits? Get out of here! Mobil 1 must be all derps since they warrant the oil for 15,000 miles!!

 

so your not a master tech? good to know! Seems like you got the oil game all figured out

Actually I was hoping you were mad cuz if not i dont see why you would be a balloon knot about the frequency of my oil changes. I just dont understand how you guys just jump to slamming. Like i said i was just giving my scenario as the OP was curious as to what others are doing. I didnt say hey buddy this is what you have to do. Dont worry about my pockets im good. And if your not mad then maybe try typing with a smile maybe the words will come out smoother

 

there's a tech on the 2nd gen TSX side that argues with me about oil changes.
since he's a tech, he's torn down engines and what not and showed a pic "this is what happens when you change your oil with a thin viscosity"

the fuck outtta here!!!! the customer probably didnt change the oil on time, regularly