oil additives

[aoriii]

Has anyone ever tried using any oil additives (Z-maxx, etc) to help with older engines (85 coupe with 58K)? I was considering putting some in at me next oil change to help with the older valve seals (car apparently sat for a while before I bought it recently).

Are these good, bad, indifferent, smoke-n-mirrors?

:confused

thanks
Trey

 

[vader86]

Dont use them, ive never used them in my 86, and it has 133K, burns only 1 qt every 2500mi.

They can actually cause more damage than they prevent, its just a way to suck your money.

 

[Tuna]

Ditto.

 

[Rabbit]

IBID!

 

[WhalePirot]

help with older engines

Help what?

RU burning oil? Any high quality oil has all the additives needed. Adding others will mess up that balance and/or cause problems/waste money.

U gotta problem? Fix it. U don't; don't.

Mike

 

[SPANISHVETTS]

I was once talked into having one of those hi-tec super slippery engine treatments done on a 5 series BMW. They filled the engine with the stuff, ran it for a while, and refilled the engine with new oil plus a quart of their additive. 300 miles later the crank froze at about 80MPH. The engine was a total loss. Before the treatment the car was burning no more than a quart in 1500Mi.

No more additives in anything I own, ever!

 

[caddy]

Just use Mobil 1, it works great.......

 

[wx briefer]

I agree. Stay away from any additive for automobile use. There are documented cases of additives that may cling to the metal surface and present a barrier to the additives in the oil that are supposed to prevent rust. Result; you may have a slicker surface (maybe not) but you will have some rust later. Mobil 1 takes care of all problems as well as anything out there.

 

[Corvette Streetracer]

My buddy is a mechanical engineer 25 yrs for Detroit Diesel. They did detailed controlled testing on all of the popular additives appx 1 yr ago and nothing came close to the protection of straight Mobil 1. Forget the lotions and potions. They are all crap.

 

[Corvette-Pilot]

Just use Mobil 1, it works great.......

;stupid

Normal oil changes are all you need.
Maybe that new higher milage formula stuff would help?

 

[swoosh]

I put additives to my baby!! Something called 710.....and I make sure the bottle says MOBIL 1 5W-30

 

[RedRagTop]

No mechanic-in-a-drum crap for me. If an engine has been wearing uniformly with a high-quality oil why throw the balance by dumping in a mystery snake oil?
Lots of additives can void warranties.