Dura Lube for S4 Turbo engine?
06-14-2001, 12:31 PM
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Dura Lube for S4 Turbo engine?
I've regularly put in a little DuraLube, a non-
particulate engine additive, to decrease metal
friction in my Saab 900 Turbo. The engine is still
going strong with its original turbo--almost 100K
miles now on hard driving...
Should I consider this on my new S4 (after the
break-in period, say 10k)? I know many who advise
against it, but also read that it may protect your engine and increase it's durability (espec. turbo).
particulate engine additive, to decrease metal
friction in my Saab 900 Turbo. The engine is still
going strong with its original turbo--almost 100K
miles now on hard driving...
Should I consider this on my new S4 (after the
break-in period, say 10k)? I know many who advise
against it, but also read that it may protect your engine and increase it's durability (espec. turbo).
06-14-2001, 12:34 PM
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Not advised.
In my experience, engine lubrication additives are either one of two things:
* snake oil and harmless (but also providing no benefit)
* provides a small benefit, but is extremely harmful in the long run
Use good synthetic oil and your engine will last many hundreds of thousands of miles.
* snake oil and harmless (but also providing no benefit)
* provides a small benefit, but is extremely harmful in the long run
Use good synthetic oil and your engine will last many hundreds of thousands of miles.
06-14-2001, 01:16 PM
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Re: Not advised. Agreed.
Search around the web. Dura-Lube and other "friction-reducers" have active ingredients that I believe (running on memory, here) are zinc-based compounds that actually do reduce friction. The problem appears to be related to contact between these compounds and the combustion by-products and other stuff in used motor oil. The interaction results in highly acidic by-products which are very nasty to the engine. So altho fresh Dura-Lube can actually reduce friction, unless you change your oil very often, you will have undesirable materials floating around your engine. Just use a premium syn oil.
06-14-2001, 01:22 PM
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The ingedients were analyzed recently on 48 Hours and it was made of Mineral Oil and Food Coloring!
They also analyzed ProLong and many of the others and came up with similar results. The DuraLube people had little comment when pressed.
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06-14-2001, 01:40 PM
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Re: The ingredients were analyzed recently ..........!
This response (and work induced boredom) caused me to research my zinc-based answer. Look at www.geocities.com/MotorCity/2195/snakeoil.html for a good summary of oil additives. Seems too much zinc can also foul cats. Some other web article outlined the acid mixing problem. This article doesn't cover DuraLube but looks like TV journalism has that covered. Looks like DuraLube just lightens your wallet. Again, just use a premium syn oil and forget all the wizzbang crap.
06-14-2001, 02:47 PM
#10
same thing aircraft engines run on for break-in ->>
they are given mineral oil because of it's unique lubricating abilities when engine is rebuilt or new from the factory.
But after a certain amount of hours they switch to full synthetic for the remainder of the life of the engine. The oil is similar to Gastrol or Mobil full synthetics - same price too.
The reason they switch is becuase the mineral oil does not contain the additives that combat fuel and other contaminates degrading the oil.
But after a certain amount of hours they switch to full synthetic for the remainder of the life of the engine. The oil is similar to Gastrol or Mobil full synthetics - same price too.
The reason they switch is becuase the mineral oil does not contain the additives that combat fuel and other contaminates degrading the oil.
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