would like information on adding octane booster to 91 octane fuel.

[SoullessCelt]

I know people that have a JB4 can benefit from higher octane. but on a stock engine, would you get better overall engine performance if you add some octane booster when you fill up? most pumped around me are 91 octane.

 

[Beefer]

All pumps have 93 around here. A rare Sunoco has 94. Other than that...you can add additives.

 

[EdP]

I know people that have a JB4 can benefit from higher octane. but on a stock engine, would you get better overall engine performance if you add some octane booster when you fill up? most pumped around me are 91 octane.

Unless the engine is designed to use the higher octane you won't see any benefit. Doubt it would do any harm to try it.

The benefit also depends on your driving habits. You can add 500 HP but it won't do you any good if you are in heavy traffic creeping along at 25 mph. If you insist on being first away at every light, maybe it would help.

 

[TurtleBoy]

As Ed said, it wouldn't hurt anything but you will not see any benefit by adding it. Here is an article concerning octane that should provide some info.

https://www.hemmings.com/blog/2014/...the-fiction-behind-those-higher-priced-fuels/

 

[joschneider]

I know people that have a JB4 can benefit from higher octane. but on a stock engine, would you get better overall engine performance if you add some octane booster when you fill up? most pumped around me are 91 octane.

I heard octane booster will foul your spark plugs prematurely. Not 100% sure on that