[NewMBOwner]

What does anyone think about using oil additives, especially to engines with a lot of miles on them.

And what about those sludge cleaners, stuff you add to your engine a day or two before you take the car in for an oil change - is supposed to help clean out a lot of sludge.

I bought a 190e with 157,000 miles and am not sure about the prior maintenace. I will be changing the oil and filter in a few days and want to hear what you think about sludge cleaners and adding something like Slik-50 or Motor-Up or something similar.

 

[SaleenS7]

I own a 1986 420 SEL with about 175,000 miles on it. I usually add additives to it such as jet fuel and all that good stuff. Trust me, it will only make things run smooother and maybe add a bit more power.

 

[NewMBOwner]

You said:

I usually add additives to it such as jet fuel and all that good stuff.

Okay, I can't tell if you are joking or not - jet fuel?

What kind of oil additive do you use?