Hi all
I have just bought a 3 yr 75k old 1.8 16v Ecotec Vectra and intend to do an interim oil and filter change (Yes cam belt has just been done, yes I know about all the usuall gripes... some pepole like them, get over it!) On all my previous cars, Toyotas, Reanults, VW's.. I have added slick 50 to the engine at a similar mileage and have been very happy. However having I have heard there is a school of thought that advises against these sorts of PTFE additives (as far as I know there is at least one other brand called grease lighting or some such). Any thing that teflon coats the inside of an engine and fills up the microscopic imperefections has to be a good thing, dosn't it??????
Any comments gratefully recived.
Thanks
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All engine oils have all the addatives all ready in ,and PTFE based products cause more problems long term than they save clogging up oil ways .The only one I have used is STP to coat all the moving parts before reassembling a recon motor.You will never see a ralley car ot track car with addatives in the engine despite all the badges on the side.
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www.chris-longhurst.com/carbibles/index.html?menu....l
Says don\'t
Metal note search for subject B4 posting and don\'t waste peoples time, DOH!
Sorry
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Sorry to put a dapener on things, but it doesn't quite work like that. Simply pouring an additive containing teflon into a car engine does diddly-squat.
Here's the way it's done..(apologies for this)
Process 1: the metal to be coated is sandblasted to create a larger surface area. It is then coated with a primer. The teflon particles are then embedded in the primer and the whole thing is cured at high temperature. This causes the teflon particles to rise to the surface
Process 2 - specially for aluminium - the surface is coated with a primer which bonds to the aluminium (which has to be very clean). The second coat, mostly teflon, is then added, which then binds the last teflon topcoat to the primer.
So, there you have it. There is no way that you can coat the pistons in an assembled car engine with Teflon by this method. I also remeber a year or to ago that the makers of Slick 50 were taken to court in the US for false claims. See www.miata.net/garage/slickftc.htm
Andy
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...but there are some remarkable claims are there not? Anyone heard of Muralube? It is widely touted on my cable shopping channel with an infomercial showing a car being driven from San Antone to El Paso with no oil in it other than a can of Muralube. Technicians then strip the car down and allegedly find no evidence of wear and tear....Motor-UP/Gear-Up is another one, with footage being shown of rattly engines being miraculously quieted seconds after adding the stuff. Personally I have never used any of these things because logic says if they were any good oil manufacturers would have embodied them in their products long ago, but since they are still around and still on the shelves, lawsuits notwithstanding, and I've never personally heard any complaints, then how come they sell at all? Unless they're just harmless "snake oil" which doesn't do anything.
As they say, I think we should be told.
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A few years ago I bought a Fiesta van, (22,000 verified miles). The gearbox was terrible, loud whine when cold, but OK when hot, and weak synchro's on all gears. I stripped the G'box and found everything OK except for the black oil - Pre sale Molyslip I think. Put everything back and filled up with the correct oil. Still had the whine, but the gearchange was perfect. It still whines now at 95,000 miles.
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According to what I have read all these amazing claims for additives such as draining the oil and running on some additives has been attempted by agencies in the USA and the engines have simply seized up.
Thirty years ago or more there was large numbers of adverts which were guarenteed to increase your MPG.
It was a standard joke that if you used a few of them together on your motor, fuel would start overflowing from your tank as you drove along.
I think bodies such as trading standards and advertising agencies halted most of them.
There was some at the time which used to claim you could drain off the oil and the engine wouldn't seize up. One of the motoring mags tried this out and of course it did. The resulting publicity resulted in this being dropped.
I think the placebo effect should be recognised. If it makes you feel good use it. Its keeping people in work. Don't we all get taken in? Several times I have bought a magical tool from a market stall such as glass cutters which are magical. Will cut glass upside down, in circles, standing on your head. They never work and being an ex tradesman should know better. How do they do it??????
Alvin
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