Not too sure where this thread should go under. I figured may as well ask here.
What all your opinions on additives? I just read up on some stuff called seafoam. Any of you tried this stuff out? I was thinking of grabbing a can of that or putting some of the lucas heavy duty oil stabilizer in my truck. I got around 250k km's on my truck and a slight knock when the engine is under load. I never used any additives before, figured I would get some opinions on them first.

 

Use the seafoam as a top engine cleaner. (feed it in thru a vacuum line, instructions on bottle.) I don't use any additives in my oil, trans, etc, as a fair few of them do more harm than good.

 

The Lucas stuff you mentioned does work. I'd put a quart of it in with your next oil change

 

Vacuum line huh..? Any particular hose I should pour it into? Thanks for the responses so far.

 

There's instructions on their website...and the bottle.
I use the brake booster line and pour it in while someone revs the engine.

 

Ther is a post here about using a straw in the can and inserting the straw into brake booster hose. This keeps form flooding the system too quickly and stalling the engine out right away.

 

I bought the engine treatment, not the spray bottle. The website say's to use the brake booster PCV. I guess I do that, hopefully not smoke out all the neighbors.

 

Going to some other neighborhood might not be a bad idea......

 

I was dared by a friend to try Zmax in my transmission and I admit I was curious too so I did. Thousands of miles later, transmission shifts and feels exactly the same as it did before the Zmax. The instructions state that you're supposed to dump a bottle of it in every 6 months, but by that time I didn't care anymore whether it "works" or not.

Just changed the fluid and filter the other day. No harm. No foul.

 

Get ready to lower the mosquito population.

I seafoamed my truck one evening just before sundown and the neighbor 3 doors down came out just after I shut it down and said, "man, somebody's been smokin' tires out here." I got the biggest chuckle out of that.