Anyone using fuel additive?!

[bentrod]

Are any of you using fuel additive?!
My 991.1 has the direct injected non turbo 9A1 engine.
I'm my older cars I have used " Marvel Mystery Oil " in the gas. It's a awful name for a good product. I like the way it can add upper cylinder lubricant.
However, I have never used it in a modern gas engine and would like to her what you think about. Or any other fuel additive for that matter.
Thanks!

[JFP in PA]

Use Techron.

[bentrod]

Originally Posted by JFP in PA

Use Techron.

I have in the past, very good stuff and it was even Mercedes-Benz approved 20 years ago. What I'm not sure of with Techron is can it be used every fill up or just during a 15K major service.

[PCA7GGR]

If you use tier 1 gas, you shouldn’t need anything else.

[JFP in PA]

Originally Posted by bentrod

I have in the past, very good stuff and it was even Mercedes-Benz approved 20 years ago. What I'm not sure of with Techron is can it be used every fill up or just during a 15K major service.

If you are using decent quality gas, once a year and change the oil after the tank has run out. You can use it more frequently, but if the car is already in good shape, once a year is fine.

[Bigtoe32067]

Snake oil
Tony

[aways]

I recently purchased a 991.1 with 58K miles. I plan to use Techron additive once prior to the next oil change, and then consistently use Chevron gas thereafter.

[bentrod]

Originally Posted by PCA7GGR

If you use tier 1 gas, you shouldn’t need anything else.

I did not know that, looked it up and thanks to you I learned something.

[bigtim01]

Before winter and after a long drive in upper Bucks County PA,
I fill the tank with my favorite top tier fuel, then the proper amount
of StaBill to the fuel. In spring after I run thru the fuel in the tank, I will add
a can of BG 44K at the next fill up that is it nothing else.
HTH
Tim

[BYprodriver]

I just use Chevron Supreme gas. 2 different EPA certification engineers told me to put nothing but Chevron Supreme in the Shelby & Saleen vehicles I was delivering for testing.

Chevron the inventor of Techron.