Which vehicle do you fill up with 91 or 93 octane?

[ltslimjim]

Originally Posted By: Solo2driver
Shell V-Power 93 octane in the WRX, 98 octane or 104 octane unleaded race gas when racing.


can the WRX take e85?

 

[CivicFan]

Two cars (A6 and Z4) require premium. The combined weekly consumption is about 25 gallons of premium gas.

 

[OriginalRocket]

2001 Acura Inegra GR-R. 13.2 gallon fuel tank. Moderately modified.

Last fill up, winter gas, 32.2 MPG.

 

[opus1]

The Cobalt. Everything else gets 87.

 

[97tbird]

2005 BMW 330 Ci - always; (requires premium)

1997 4.6L Tbird - once in a while - mostly gets 89 (pings with 87 oct under hard acceleration - has gotten better after cat replacement, but not 100% gone)

wife's 2003 Elantra gets 87 always.

 

[DreamerGT]

The mustang is tuned for 93.

 

[Patman]

My Corvette needs premium, and it prefers 94 octane over 91, as I get mild pinging under load (even at very light throttle) when I run 91 octane. At over $1.40 per liter for 94 octane right now up here it's quite expensive to drive everyday! (it's a good thing I moved closer to work!)

 

[cp3]

The G5 recommends 91 so that's what I use.

 

[Audi Junkie]

I have the APR 91, 93 and 100 octane on my VW 2.0 TSI.

 

[PandaBear]

One of our car that mandates it, due to 12:1 compression ratio.

 

[GMBoy]

I run regular 87 in:

2008 Cadillac CTS 3.6DI 304hp (car calls for 87!)
Lawn equipment

I run Premium in:

94 Corvette LT1
87 Buick GN 3.8Turbo
78 Jeep CJ-7 (usually 89, though)
06 GMC Sierra Denali 6.0L when I drive, 87 when the wife does.
02 Harley Softail
04 Harley Lowrider
84 Iron head Sportster

 

[rshunter]

My VR6 and 2.0T get 93-octane. Everything else, including my bike, get 87-octane.

Well, other than the TDI of course...

 

[raaizin]

2007 A6 3.2 premium(I believe 12.5:1 compression)
2008 X3 regular
2002 Maxima regular(133k miles on it with no ill effects)

 

[paulo57509]

1998 Lexus LS 400 (92 octane required)
1987 Camaro (92 octane recommended)

 

[addyguy]

My car only needs the cheapest 87 stuff you can find.

That said, more often than not, I fill it with E10 up here that is 89 octane, but the same price as 87 at certain stations.

Yeah, I know, it's a sneaky way to get you to 'buy into' the E10 thing, by giving you more octane for your money....oh well, I buy into it!

 

[adamrc]

I run Shell V-Power 93 octane in my 2004 Lincoln LS with the 3.0L V6. It requires 91+ octane.

 

[Trajan]

The Z4.

 

[IndyIan]

My cars are fine on 87, before a track day I'll fill up with 91 for the Neon just for a bit of a safety margin as I beat the tar out of an old motor... I won't really miss the 1-2 hp loss but I will miss a cylinder!
Sleds, saws, ATV, dirtbike and by default the lawnmower and rotor tiller, all get 91 due to no ethanol and they sometimes get worked very hard too... The Atv only needs 87 but after a long push plowing snow up my hill the header is often a dull red...

 

[kkreit01]

none. Hemi "recommends" 89. At this price I normally fill 87.