fuel and oil treatments

[scarlett]

It is a shame that these posts, that might have been useful to those of us want to preserve our motors as new for ever, have had to be pulled. I have a bottle of diesel treatment that I have had on board for a decade but scared to use because of the conflicting advice.

Similarly I have had a couple of decades of experience with Slick 50. It may be snake oil but it has existed in my various motors when the things have been subjected to cruelty without catastrophy but others, in the oil industry, say it is either unnecessary or harmful. Maybe someone somewhere is wondering ---- Skick 50 -- should I?

 

[cliff]

I would not put slick 50 in a marine diesel engine same as I would not use synthetic oils in my engine.

The only concession to "snake oils" is the use of Forte diesel treatment to keep the injectors (and pump) clean and that was only after speaking with the engine manufacturer.

As I said in a post, before the thread was "kimmerised", was "what is wrong with opening the drain cock on the tank and draining off the crud (dead bugs, jelly and water etc)? That way one knows the tank contents are clean.

If you don't have a drain cock try one of the vacuum oil extractors and suck the crud from the bottom of the tank or fit a drain cock. What do commercial (trawlers) vessels do?
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“I’m as confused as a baby at a topless bar. “

 

[Avocet]

Never had any direct experience myself but I've heard a few tales about "flushing oils" and similar products supposed to clean engines. Apparently they work (to varying extents) but after using one, a few people have suffered bearing failure as a result of oil starvation. I think these products can loosen quite substantial chunks of gunge which then block small oil galleries and starve the engine of lubrication before they get to the filter. Don't know if its true or not as these were elderly car engines and for all I know they might have died anyway but I'd be very wary of any such product. I have never understood (given the millions of £££ it costs to develpp car engines these days) why the major manufacturers don't endores or use these products. After all, think of the potential benefits for a manufacturer that could claim his engine had been "treated for life" at the factory with something to make it smoother / faster / longer lived / more economical / cleaner / greener etc! I think it it was a case of spending £10 a car on a can of magic gunk, they'd be pretty excited!

 

[Johnjo]

I was always led to believe that oil additives such as Slick 50 or Molyslip would never allow a new engine to bed in, Ok i guess for a older engine, squeeze a few more miles out of it, but to my mind the oil and engines of today don't warrant it ! better to change the oil and filters regulary.