I have used that product in the past and it has helped loosen up an engine and
quiet it if it is not too worn. I would not use it on a high mileage engine
though and it may lower your oil pressure but not much. (it thins the oil). If
you are using synthetic oil it should not be necessary. I have not ruined any
engine by using it. It is a very high detergent additive.
"Ryan G." wrote:
> What exactly is Rislone used for and is it effective? It sounds like i have
> a lifter or 2 making plenty of racket under any acceleration plus the
> valvetrain is quite noisy as well but it seems thats common. Could Rislone
> be effective in this situation?
>
> Thanks --Ryan
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