93 Octane?

[tranzformer]

Originally Posted by Nate219BRZ

i take it its okay to run racing fuel in these...110 octane?

On a stock engine? Why? lol The engine is tuned to run on 91 fuel. If you were going to rebuild your engine for FI then sure, race fuel would help. But on a stock engine? You are just wasting your $$$.

[Snoopyalien24]

Originally Posted by Dave-ROR

I'd guess the college intern in the marketing department saw the world "premium fuel required" and converted that to "93 octane required"

91 AKI is 95 RON anyways I think, so the 93 doesn't make sense for that mistake.

So we use 91 or 93 then?

[Enemies]

Weird, I think all the pumps here are 87, 89, and 91. I could be wrong but... I thought so anyway.

[Canibuz]

Originally Posted by Snoopyalien24

So we use 91 or 93 then?

Just add a can of this every fill up and you will be good to go

[Nate219BRZ]

depends on the station, i know my local gas station has everything from 86 to 115, but they are really close to the track

[Dave-ROR]

Originally Posted by Snoopyalien24

So we use 91 or 93 then?

Whatever they sell near you. We don't have 91, just 93 and occasionally 92.

[Dave-ROR]

Originally Posted by Nate219BRZ

i take it its okay to run racing fuel in these...110 octane?

We don't know if the ECU is smart enough to retune itself by advancing timing to take advantage of higher octane fuels. If it's not, you won't only be wasting a lot of money per gallon but you'll be reducing performance at the same time.

[borge12]

I just posted this in another thread, but it is relevant here too:

Speaking about the Genesis taking 87, saw these tweets from Scion:

https://twitter.com/#!/scion/status/176767072662065153

[Dave-ROR]

Originally Posted by borge12

I just posted this in another thread, but it is relevant here too:

Normal. Timing will be retarded and fuel economy will drop with performance making it basically pointless to bother.

[carbonBLUE]

JUST GET PREMIUM


i think im done here.... if you are worried about paying a bit more for the gas, then you arent ready to pay for the car...

[tranzformer]

Originally Posted by Dave-ROR

Normal. Timing will be retarded and fuel economy will drop with performance making it basically pointless to bother.

Actually that isn't necessarily true about the fuel economy. We will have to wait and see once we get it in our hands if someone will test several tanks of regular vs. premium.

While different engine, different car the 3.8 GC has no difference between regular and premium. Owners have been saying that for a long time. Doubt we will see much with the BRZ. Probably down on a few HP ~5 but that is about it.

[carbonBLUE]

Originally Posted by tranzformer

Actually that isn't necessarily true about the fuel economy. We will have to wait and see once we get it in our hands if someone will test several tanks of regular vs. premium.

While different engine, different car the 3.8 GC has no difference between regular and premium. Owners have been saying that for a long time. Doubt we will see much with the BRZ. Probably down on a few HP ~5 but that is about it.

does the GC have a 12.5 compression ratio?
the GC has a 10.4:1 compression ratio, you can run anything in it
when you are at a 12.5:1 ratio you cant run anything below 91 because the engine will detonate
there is no way anyone should run less than 91, if you do, you're an idiot, go ahead and blow your engine up, shame to see the first 86 off the road cause some dumbass cant fill it up with the right fuel
my celica says PREMIUM REQUIRED so what do i do... fill it up with premium... its easy people... never once did i ask myself "uhhhh maybe 87 will be fine?... yup "

[tranzformer]

Originally Posted by carbonBLUE

When you are at a 12.5:1 ratio you can't run anything below 91 because the engine will detonate.

There is no way anyone should run less than 91, if you do, you're an idiot, go ahead and blow your engine up, shame to see the first 86 off the road cause some dumbass cant fill it up with the right fuel?

Why don't you give Scion a lesson in engine management and proper use of octane rating?

Originally Posted by borge12

https://twitter.com/#!/scion/status/176767072662065153

[carbonBLUE]

Originally Posted by tranzformer

Why don't you give Scion a lesson in engine management and proper use of octane rating?

i dont need to, its common sense, if my 2zz-ge has a 11.5:1 compression ratio and someone has tried 87 and had detonation problems, why would a 12.5:1 compression handle 87 any better... or if the car manual says USE PREMIUM, and says it on the gas lid, in the car, why would you use anything different, stop being cheap, treat the car right and give it 91-93 octane