What octane gas for '97 volvo 4.3GL?

randyo

Petty Officer 2nd Class
Joined
Apr 8, 2005
Messages
108
Quick and dirty:<br /><br />What octane gas should I be using with a 1997 Volvo 4.3GL?
 

youmansjason

Seaman
Joined
Jun 3, 2005
Messages
73
Re: What octane gas for '97 volvo 4.3GL?

I've got the exact same engine. The Volvo-Penta owners manual says a minimum of 89 octane. <br /><br />However, I usually alternate between 89 and 93(premium) to help prevent run-on that these engines are prone to do.
 

randyo

Petty Officer 2nd Class
Joined
Apr 8, 2005
Messages
108
Re: What octane gas for '97 volvo 4.3GL?

Thanks! What do you mean by run-on? When you kill the engine it keeps running?
 

bluewater19

Chief Petty Officer
Joined
Apr 25, 2003
Messages
505
Re: What octane gas for '97 volvo 4.3GL?

I use 89 on mine per manufacture specs. Never had a problem yet!
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: What octane gas for '97 volvo 4.3GL?

save your money, stick to 89. if your engine starts to diesel, just run some seafoam through the carb to get rid of the carbon build up.
 
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