HYPERBOY

ive heard that its not good for ur engine.....


just wanted to hear it from the many es owners.....

and if its even worth it???

Pheonix

Learn what octane is first, then you'll answer the question by yourself.


No it won't do anything for you
No it won't hurt anything provided you don't average more than 10% alcohol in the gas.

HYPERBOY

ok sooo its better to just put 93 octane (top brand)

AzNMpower

Um, yea.

It doesnt make much sense either if you do the math:

Say premium is an extra $.25/gal over regular. Fill up with 15 gallons and you'll pay an extra $3.75. And a bottle of octane booster will probably cost more and do less anyway.

By the way, more octane doesnt necessarily mean more power. Putting premium gas into a Honda Civic or any car that's designed to run on regular won't make it go faster. Now, the Lexus cars usually do benefit from premium gas, but putting significantly higher octane gas won't make it magically create +25hp.

Pheonix

You still haven't researched what octane is...

Google is the bomb.

Choas

Ok i went and read what octane is it the rating at which gasoline can be compressed before it combusts. Still and of all the people here on this forum when it comes to this I trust you most Pheonix does using 93 octane in an es300 make it perform any better and/or better for the motors overall health.

Pheonix

Only if it's tuned to run a higher octane.

Lexmex

Listen to Pheonix

At my 1/4 mile track, I see a lot of empty bottles of Octane Booster (NOS, Restore (actually a fuel injector, too), Prestone and tons of local brands).

I asked many racers does it do anything and the answers told me it was all in their head.

Personally, I made a test of a few of these boosters and I can't say that I felt anything much in the seat of the pants or in terms of times (trying to keep fuel levels and monitoring air temperatures as much as possible). However, even then these products seem to promise a lot, and so something should have shown up if they were truly as good as advertised.

Choas

So the motor in a stock es300 is or is not tuned for premium since it says in the manual for better performance use 93 octane

3000

Use higher octane if your engine pings, use higher octane if you live in hot places like the desert, use higher octane if your engine has a high compression ratio, use higher octane if you're running with a turbo setup... otherwise it's not that necessary.

AzNMpower

It will perform better if you use premium (I believe 91 octane.........not all places have 93). However, is it necessary? no. The engine will retard ignition timing if needed when running on lower octane. Fill up with any grade of gas you feel like. However, don't fill up on premium, and then buy a bottle of octane booster assuming that the ES will make more power if you make it say, 96 octane.

Simply put: no need for octane booster. What you get at the gas station is enough.

Parker Gen

Do you guys get a choice of 93, 98, and 100 octane in the states as we do?

Pheonix

We use octane rating. You use purely ron rating. Same gas, different rating system.






Toyota has yet made a v6 engine that required the use of 93 octane. (98ron)

Lexmex

I get a very high sulfur 87 octane and a 92 octane low sulfur gas. However, I still think the 92 leaves a lot to be desired and I reverse my earlier opinion about the new Pemex formula.

tuan92129

Why would you use a higher octane fuel in the es300 when the camry has the same engine and recommends 87/89 octane?