After the first oil change...

[gid]

1st oil change for both '08s at around 1,400 miles with PENNZOIL Platinum 5w-30 full synthetic motor oil . Then again at little less than 5,000 miles with more PLATINUM .

[natethegreat38]

i don't get why people change the oil so early!!?? I guess it isn't going to hurt anything, but it just seems like a waste of time and resources...

[Tamago]

Originally Posted by natethegreat38

i don't get why people change the oil so early!!?? I guess it isn't going to hurt anything, but it just seems like a waste of time and resources...

i'm running 12psi of boost

[natethegreat38]

Now, THAT makes sense! I completely understand if that is the case!! But for other cars that are NA or even completely stock...then the previous statement applies :)

Tomago- Good call on changing the oil frequently in a boosted engine!

[talnlnky]

i waited 4700 or so miles before getting my first oil change.... I didn't see an increase in mpg's until after I started using DFCO.... which gave me +10% (4mpg) instantly. I'm guessing i've prolly gained about 2-4mpg's from engine wear in, and the rest comes from changes in temperature outside, and changes in driving style (more laid back now).

i think I MIGHT have seen +1mpg MAX when i switched to mobil 1 5w30 synth.... but possibly there was no change at all.

[sketch182]

My 1995 Corolla has 290,000 km using the Toyota oil change recommendations. It runs like a top and burns no oil. Pretty much speaks for itself.
PS The A/C still works too.

[Jack Reacher]

Originally Posted by sketch182

My 1995 Corolla has 290,000 km using the Toyota oil change recommendations. It runs like a top and burns no oil. Pretty much speaks for itself.
PS The A/C still works too.

You said it right there. Follow the book due all your routine maintenance in a timely manor and chances are you'll be like this guy. You don't even have to spend the extra money on synthetics,fancy oil/air filters and any other gimmicks. I'm just an old man though. What would I know?

[marcus]

well unfortunetely i drop mpg on switching to mobile1 synthetic 5w-30 dont ask me how and why ..and im anal on my fuel economy and tracked them from day 1... lost about 25-30 km on a 36 liter of gas.. i got slightly better after the 3rd tank though.. but still i cant get my 590 km on the 36 liters anymore..

[gid]

I posted a theory for lost mileage when using synthetic over conventional oil , got slammed for that . Ain't stepping in that pile of again .

[Chupacabra]

Changing the oil is the single most important thing that one can do to maintain and extend the life of their vehicle. On a new car....I recommend changing the oil at between 500-1000 miles. After that....I would change the oil every 3K miles or 5mo., whichever comes first regardless of synthetic oil or dino. This is my own style and I don't agree or disagree necessarily with any other regimen BUT do practice my own interval outlined above.

[marcus]

sorry guys i have to comment on this.. i went fr 5w-30 to 5w-30 synthetic.. my mpg went down.. i used to get average of 580-590km on 36 liters now its only 560-570km .. this is during summer so temp is tha same as well as driving habits.. go figure.

[SuperFunBall]

Marcus...at what mileage did you switch over?

[marcus]

Originally Posted by SuperFunBall

Marcus...at what mileage did you switch over?

24000 kms..

[SuperFunBall]

Just curious. I heard that if you switch over too early before proper break in you could see a drop, but you switched over much later. You might want to try the new Mobile-1 OW-20 or 5W-20 on the next oil change to see if it helps restore some of that lost FE.

[briman]

Originally Posted by sketch182

My 1995 Corolla has 290,000 km using the Toyota oil change recommendations. It runs like a top and burns no oil. Pretty much speaks for itself.
PS The A/C still works too.

wow. That sums it up. And the AC still works. That's a bonus.

[Reddog99]

Originally Posted by marcus

sorry guys i have to comment on this.. i went fr 5w-30 to 5w-30 synthetic.. my mpg went down.. i used to get average of 580-590km on 36 liters now its only 560-570km .. this is during summer so temp is tha same as well as driving habits.. go figure.

I've heard that the Yaris engine is sensitive to oil level being too high (will cause drop in mileage). so double check your oil level and drain off a bit if necessary. FWIW, I changed my oil at 1000 and the mileage dropped 2 mpg. After reading about the too-high symptom, I drained off a little (it was too high) and the mileage came back up.

When I changed my oil to Mobil 1 at 5000 mile, the gas mileage didn't change, but as the engine slowly breaks in, I've noticed that the mileage is slowly improving. Over the last 5000 miles the mileage has improved 3 mpg and I'm averaging over 40 mpg now (as long as I keep my foot out of it).

[Jeff E.]

Originally Posted by natethegreat38

I still don't have enough miles on my car to have had the first oil change yet, but I heard that your mpg/ FE will improve slightly/dramatically once I get it changed for the first time...

Can you please share your experience?? Can you confirm/deny this??

Since the weather got cooler, I don't get anything beyong 36 mpg, even after my recent first oil change. My last was 35mpg due to 200 miles at 78 miles per hour on the interstate. So about 36mpg mostly hiway at 59 miles per hour top speed. Not the best.

I drove a Yaris Sedan for a while last summer and got 41-42 almost all the time.

[SilverGlow]

Originally Posted by Tamago

you should always change your oil the first time before 3000 miles.. that's break-in oil inside your engine and it needs to come out after 1000miles..

My BS metering is ringing off the table, and down the hall....sorry but your info has no basis, none whatsoever....