Customer Ratings & Reviews

Amsoil PI stopped sluggish cold starts. Great product.

I bought into the hype about this product and signed up. 2 bottles later and there's no true results I can see or tell on my Chevy work truck. Overall I'm disappointed in this product.

So good on fuel and clean injectors.

This product is great for all power equipment and great for your gas engine, so far when I add it to a full tank I get better mileage. I can’t check my spark plugs because they are underneath the intake manifold. I’m sure it’s most likely cleaning those intake valves! I even use it in my JD mower, it keeps the plugs clean!

Good product

This is great for your vehicle and will help it run great all of the time!

Two of four spark plugs had center electrodes worn to double the specified gap, and 1 plug wire was arcing on intake manifold. Check engine light on with OBD2 misfire diagnosis on cyl 4. Looking at the deposits on the plugs I suspected cylinder heads and injectors may have been affected. I am hoping this product removes deposits built up during misfires.

Keeping my injectors clean

If Im going to use a gas additive, its going to be this one

!!!!!

I use TooTier fuel exclusively and after a tank I did notice a difference in throttle response and quieter idle, worth it for regular maintenance

I put this in the fuel tanks of my vehicles when i change the oil and it seems to be helping smooth out the idle.

I put it in the tank very 5,00 mile or so to help keep injectors clean and top end lubricated.

I always add when buying non-ethanol gas for chainsaw, lawnmower and boat. Never have problems related to "bad gas". Excellent product I highly recommend.

I love all Amsoil products

Used this in the fuel in all of our vehicles. Even with the poor quality fuels we have in SC, have not had any fuel related issues in any of our vehicles since I started using this Amsoil fuel additive. Pleased with this product.

Excellent Service

I use this product every other oil change and it has kept my emission components in great shape. It has helped clean old gas that has been in the tank for a few years in storage. I noticed the difference when the tank runs low and I fill up with regular gas, the engine doesn't feel sluggish anymore after using this product in previous tank.

The best product!!!

Seems to work well keeping the engine cleaner. Then again I try to only use Top Tier Gasoline in my car which also helps.