TecnoSmurf

iTrader: (2)

My compresion test/leak down says that I am leaking from 2 into 3.


I need to replace my head gasket but I don't have all the money for the turbo.
I am already running everyday with 91 with no problems. I may need to change to 93 as it starts to hit triple digits in my valley.

Can I use 87 gas with a 1.3mm head gasket?

Cleanshots

iTrader: (2)

wat does that have to do with a head gasket?

TJohnson

Yeah what does 87 octane have to do with a thick head gasket? If you can't spare an extra $5 bucks a tank for the good stuff, then you might not want to turbo or go with a thicker headgasket. You car was designed to have 91 or 93 run through it.

Worst case scenario the diff between 87 and 93 is .25 cents. If you filled up 20 gallons just as an example, that's a whole 5 bucks difference. If you are talking about turbo and other performance down the road, get used to the 93 and keep it in there always. No need to try and cut corners for a measely amount of money like that.

IonFeright

iTrader: (-1)

Totally not worth it IMO. Even if a diff gasket did enable you to run a lesser octane fuel (which it wont), you would still have to put out the $1200+ for parts and labor. Just go with the thicker hg and turbo that bad boy already so I can see what Im getting myself into. lol

Gunnar

He's asking if the thicker headgasket will lower the compression enough to where 87 octane is going to be okay.

I'd imagine it'd be "more" okay than with stock compression but the computer is still going to be pulling timing out. The previous owner of my car ran 87 on stock compression and it was okay since the computer compensated, it was just really slow.

TecnoSmurf

iTrader: (2)

Thank you for knowing what I am talking about

How does the computer know what type of gas I put in?

Gunnar

It doesn't, but lower octane will ping/knock and when it senses it, it'll pull timing out to stay safe, which in turn makes the car feel a lot slower.