Mag 1 157 Premium Octane Boost - 12 oz., (Pack of 12)

Good product. Makes my truck run better and better MPG

I bought it for use in my car. Worked well however with more research I had found Mitsubishi considers MMT which is found in this product to be a low grade booster and they suggest you do not use MMT in their vehicles. Their words. To use up the case I am using it in my lawn mower and tractors. In a 23 HP B&S engine it works well and tamed the harsh engine and takes very little as the tank is only 2 gallons. Only took about 15 minutes to see the results on a well maintained mower. I think I will go with Gunk as it has no MMT for the Mitsu.

Hmmm, a bottle of kerosene.

Second time I've ordered this product, and both times the case arrived with at least one cracked bottle and the package saturated with chemical.

I have been in the habit using either Gumout or Gunk octane booster in my 2004 supercharged GTO, and both of them eliminated the knock I used to get with 91 octane fuel under certain conditions, as long as I doubled up on the concentration. Mag 1 doesn't seem to work quite as well as the bigger name brands, but there is a substantial cost savings.

Purchased three cases of Mag 1. Results after just 2 bottles are impressive. Added to 87 octane gas when I fill up, my SUV runs as if powered by 92+ octane. My highway mileage at 70mph a fully loaded SUV is better than manufacturer's mpg rating. 93 octane gas is typically 40 cents a gallon (or more) more than regular. Using Mag 1, I save around $4.00 per fill-up vs. the 93 octane.

seams to works good needed for my 1998 Buick regal requires premium gas for the supper charger works better with the product

It does improve gas mileage.