Ultra ADDITIVE 32oz

The price when mixed with premium came out to about the same price as race fuel, but was super handy since all the local suppliers were out of race fuel and I still had a couple of tractor pulls to go. Worked great in a pinch and my tractor ran well with it.

This stuff works as advertised!!

Expensive, but worth it if you want that extra HP. Sure could not use this all the time, but every once in a while to dump this in 4 gallons of 94 octane is a blast. NOTE (IMPORTANT) If you don't have a High Compression engine, you are wasting your money. It will only slow you down.

Great Product

It seems to work very well. Unfortunately, it's VERY expensive to use. Sunoco 260 GT race gas is 100 octane, (R+M)/2. In my area it's $7.59 a gallon. Yeah, not cheap by any means. However, if you use this product to achieve 112 octane (R+M)/, the blend ratio is 1 can per 4 gallons of 93 octane pump gas. Adding the price per can, plus the price of 93 octane pump gas your price per gallon soars close to $10.00 a gallon. Even if you use this product with 89 octane pump gas to achieve 108 octane the price per gallon is still about $8.75. I'll use it with NOS passes only as insurance. I'd use it all the time if it wasn't so expensive.

Mixed a batch of 89 and one can for a 110 mix in a 5 gallon can. I can empty my tank completely when I need to. My motor is built and tuned to run ms109. I can use this to save some money especially when logging runs off the track. About $7 a gallon cheaper. For almost identical performance.

The stuff works but don't think you are going to feel gains like NOS or even a percent of that.. The ECU will make the power it's told to make either way, But this stuff will help on a Track night if you run your daily on weekends. If anything it will help with Knock on Turbo cars...

2nd time buying…husband uses this for his 71 Chevelle and V-drive boat. Obviously he swears by it!