Lucas Oil10026 Octane Booster - 15 Ounce

This octane booster really increases the octane numbers by 3. I have a Harley Davidson motorcycle that’s had the engine upgraded, it requires a minimum of 93 octane. These engines don’t run well on 91 octane and really bad on 87 octane, this is a high compression engine. Harley Davidson has their own octane booster. My engine runs better on Lucas. There are other good octane boosters but Lucas has the best price for me in this “15 ounce” , the other size bottles are more expensive per ounce

This stuff really works, you can literally feel the difference, I use it in all my rides.....I just wanted to add a safety message for folks in very hot environments, I just received my delivery of two bottles, and while opening the product, while pulling the clear tab to get the top open, It spewed out in a high pressure stream....so keep tour face and eyes away from the opening if it's really hot outside.....This may also explain why sometimes when you receive this product it has leaked out into the cardboard box....No complaints with the product at all, works like a charm....

While I cannot objectively verify the claim for the effect of this product on the resulting octane number of the fuel in the tank, it appears to be working well - I can monitor the ECU-commanded timing adjustments via my COBB AccessPort and it is responding admirably. Very importantly it uses honest metrics: unlike other competing products that make claims using "points", which are a tenth of an (R+M)/2 value, this product actually claims to raise that number by three full (R+M)/2 numbers, and I believe that is true.

Seems to work my car was pinging due to low octane fuel. It stopped when I put this in. Smells like 104 plus.

It's a little more horsepower to 93 octane. I use it every fill up. Seems to add a little extra horsepower noticeable difference in my LS3

I loved it! It’s so full of flavor. My kids loved it. Even the ones that always rolling their eyes at the food, they devoured it. Certainly it was a win!!!

I use this additive in my 1/2 ton pick em up truck which the manual "recommends" at least mid range fuel. I add a bottle of this to each tank. I notice a slight increase in fuel milage but only on the hi ways. in town, as much as I love my pick em up truck, the MPG is terrible. Great stuff.

100% SATISFIED.