<font color="green"> Thunder - I would hope that any well maintained engine that gets the oil changed every 3-5000 miles would still run great and burn very little or no oil at 130,000 miles. If the stuff works for you, then that's great, but I still think that it's just another company trying to take your money. Tufoil is "a super-suspension of micro-miniature PTFE particles and soluble molybdenum, permanently suspended in oil." They say that that the teflon particles are so small that they can't get trapped in filters or anything, but I just don't see the point in putting something in the engine that it really doesn't need. All of the additives have the same basic ingredients, marketed differently and to different markets.
If I told you that a freind of mine has a '93 Ford Explorer that has 375,000 miles on it and has never had the engine rebuilt, you'd probably want to know the secret. Here it is - the oil was changed religiously every 3,000 miles. That along with regular maintenance will make any engine last plenty long, IHMO. (As a sidenote, the engine is getting a bit tired at this point and starting to burn some oil, but with almost 400,000 miles, that's pretty much to be expected.) A list of other cars in my own family with the mileage, all of which have never seen an additive, just regular oil changes -
1989 Chevy C1500 - 180,000 miles, stock bottom end, top end was changed to trickflow heads and Edelbrock intake at about 100,000miles, still no oil consumption. Runs perfect.
1993 Ford Crown Vic - 175,000 miles, no oil consumption, bone stock engine, never been apart. Ran perfect when sold last year.
My first car - 1977 Toyota Corona (20R motor) - sold at
150,000 miles, never rebuilt, ran like new after a minor tuneup. No oil consumption to speak of.
Then there's a good freind of mine's '92 K1500 - 220,000 miles, never been rebuilt, runs like a top. It consumes about half a quart an oil change, but he isn't real good about changing his oil every 3000 either, he goes as long as 6000 sometimes.
Anyways, no offense intended, if adding the stuff makes you feel better than more power to you. My point is that the various additives on the market are really not neccessary, all that's required is regular maintenance with a quality oil.
Sorry about my rants in this thread, I didn't intend to go off on it like this, I just hate to see people throw money away on this stuff when all of the facts say that it's bogus.
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