Lucas OilLucas Oil 10576 Safeguard Ethanol Fuel Conditioner with Stabilizers - 16 Ounce

Works well in conditioning e85 for flex fuel vehicles.

a trusted product used for years

I had a check engine light that was persistent and we couldn’t actually figure out what the problem was. So I bought a bottle of this and used it with some good midgrade gasoline and the check engine went out and never came back on. It is well worth the price and it only takes a couple ounces per gallon. I would recommend it to anyone that’s running some of this cheap ethanol gas. We have it really makes a difference you will notice it.

A great product. I've been using this in my fuel since the ethanol was introduced. I've had very few problems , because of this product. Highly recommend.

It was missing the cap when it arrived. It wasn't even in the box so it was packaged without the cap. Luckily the foil seal stayed in tact. I will have to find a cap that fits because I wont use the entire bottle in one use.

Made a difference to me.

This was recommended by my mechanic . So far I have not seen a change.

I use this for my vintage Morgan. Completely satisfied with its ability to mitigate ethanol effects on my fuel system, and keeps the fuel tank free from rust. For some reason, hard to find at auto stores in my area - thank goodness for Amazon!