It's purpose was lubricate the internal parts of the injector. MMO does state that it can be used up to E30.
I would be careful using it in E85 then. Tuning a car is very different than doing solubility studies. E30 is a very different animal vs E85, when it comes to solubility. When I was doing solubility studies back in my petrochem days, I saw that mannich detergents wouldn't work well in E85. In the additive industry, we know that few chemicals work for all fluids and applications. If some detergent/dispersant works well in gasoline, it usually sucks in oil (and vice versa). MMO markets a fix-all product which raises some red flags. I am guessing it is probably an ok oil additive that contains some friction modifiers. I would have to see some data and solubility studies before dumping it in my gas tank. Just a little warning from an ex-petrochem guy.
This is a decent one that should be completely compatible with E85: https://www.amazon.com/Lucas-Oil-10...15B7C1XKVRH&psc=1&refRID=B5W5PCFZ715B7C1XKVRH
I agree. As a polar compound, Ethanol is only somewhat better than water with many, but not all, other organic compounds. 90% or higher ethanol is not compatible with aliphatic motor oil-type compounds. I would think the same of E85 and MMO.
Talking with Shaun this was an option or just running a tank of 91 once every quarter or so lol. But even less needed considering we get flex fuel here in Phoenix and not true e85, circa e54ish.
After doing a lot of reading, I think this is a good strategy. For E85 instead of Flex, it might even make sense to run a tank of 91 every month or so, instead of quarterly. Even so, a compatible additive (seems like Techron might be a choice) wouldn't hurt. I'd like to see what Bootlegger (or anyone else) has to say. Any additive has to be soluble in E85. It can't just be an organic suspension- that would be hell on the fuel system if present on a regular basis.
Chevron was an old direct competitor, and I studied the techron additive well. They are some of the leaders in PEA (poly etheramine) manufacturing, and the detergent works great in ethanol applications. Solubility is excellent, and PEA is known to help clean up injector deposits on top of the IVD cleanup. That is key for a car with both port and direct injection. The world of aftermarket pour-in additives is full of big claims and few effective compounds. Even Lucas used to sell bottles of nothing. I think they have changed their ways recently. I can speak from experience on Amsoil, Chevron, and STP additives. We did test MMO and Lucas years ago, but saw few active ingredients.
So Techron every so often is a good idea for a dedicated E85 car?
I think the normal bottle of Techron is a 1 tank cleanup dose, so using it every 3rd or 4th tank would probably be about right. There should be dosage instructions on the bottle. I wouldn’t use a 1 tank cleanup dose in every tank.
My 2011 F150 5.0 has the same E85 filler....Ford has data from trucks on this fuel....no mustang love yet....This is my rental F150 with gen3 coyote A10 cap-less gas filler. Says E85 right there....
