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What gas should I use for my lg4

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Old 04-21-2012, 07:54 AM
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Car: 87 Camaro Lt
Engine: 350
Transmission: 700R4
Axle/Gears: 4th gen 3:42, posi, disc
What gas should I use for my lg4

Would I get any benefit from running premium? Not looking for just performance, I care about keeping the motor healthy. I strictly use shell or chevron btw.
Old 04-21-2012, 09:04 AM
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Car: 1984 Trans Am Convertible
Engine: 355
Transmission: WCT5
Axle/Gears: 3.73
Re: What gas should I use for my lg4

no, lg4 has low compression... i always ran 87 and had over 300k on a stock lg4
Old 04-21-2012, 10:10 AM
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Car: '82 Recaro T/A, '71 Trans Am
Engine: 305CFI/455HO
Transmission: TH700R4/M22
Axle/Gears: 3.23/3.42
Re: What gas should I use for my lg4

Owners manual specs 87 octane. Even though the '85-87 LG4s have around 9.5:1 compression they have a knock sensor to control any detonation.
Old 04-21-2012, 07:49 PM
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jmd
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: What gas should I use for my lg4

On an 87 with the higher comp. ratio, you can run higher base timing with higher octane.
Old 04-24-2012, 08:49 PM
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Car: 87 Camaro
Engine: 305 LG4 (H)
Transmission: 700r4
Axle/Gears: 2.73
Re: What gas should I use for my lg4

If its a stock car (or you have some SUPER nasty carbon built up on your pistons effectively increasing compression), anything other than 87 is a waste of money.
Old 04-24-2012, 10:45 PM
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Car: 1991 Christine Z28
Engine: RV Cam and Intake 350 SBC
Transmission: 5speed
Axle/Gears: 3.08 ls Posi
Re: What gas should I use for my lg4

110 octane should work.
Old 04-25-2012, 08:10 AM
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Car: 87 Camaro
Engine: 305 LG4 (H)
Transmission: 700r4
Axle/Gears: 2.73
Re: What gas should I use for my lg4

^^ LMAO - smells better than 87 if you have no cat(s)!
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