What is your recommended fuel additive to increase fuel mileage. I have a 2018 Toyota Rav4 & use Techron sometimes. BTW - When I asked the dealer about changing the Transmission oil @ 60k miles, he was insisting on a transmission flush which I told him I did not want. in Hawaii this dealer is the main Toyota dealer.
What is your recommended fuel additive to increase fuel mileage.
None. All they do is separate you from your money.
What is your recommended fuel additive to increase fuel mileage.
Don’t bother. Save your money and use it towards maintenance. See Scotty’s videos for things that can impact fuel economy: as long as you are on top of it you don’t need to waste money on “snake oil” additives:
https://www.youtube.com/c/ScottyKilmermechanic/search?query=Fuel%20economy%20
What is your recommended fuel additive to increase fuel mileage.
If there was anything left to do to increase in the fuel mileage be sure the manufacturer would have done it. These fuel additives for increasing fuel mileage are just a big scam that has increased a lot due to gas prices being high.
When I asked the dealer about changing the Transmission oil @ 60k miles, he was insisting on a transmission flush which I told him I did not want.
So they didn't do the transmission fluid change for you? You can always have a trusted independent mechanic do it for you if it's something you don't feel comfortable doing yourself. Personally I use the dealership only for warranty work.
Don't use anything if you don't have a reason to. Gas at American stations have a minimum amount of mandated cleaners in them.
If your engine is idling a little off and your fuel trims are off, you could try running a few bottles of cleaner through. Gumout brought my Ranger from -11% to +/- 1-2%. They don't always work that well. My MPG didn't noticeably improve because of it.
Read the bottle of Techron. It says it contains some fraction jet fuel for added cleaning power. Personally, I find that one amusing. Jet fuel is kerosene based, which isn't nearly as good of a solvent as gasoline. It's slimier like diesel fuel.

