1. Use this soup
2. valve cover gaskets from, timing belt and camshaft from, and then clean with Hydros dilution.
3. obstruct New Hydros if 1 and 2 is not working.
First of all you have to distinguish which the Hydros rattle. Mostly deposits by bad / cheap
Oil, because then comes 1 or 2 for wear.
If the Hydros are however done by wear, helps no Renigen etc. Since you can not expect miracles,
so I understand not at the 1 star reviews!
If the deposits are too strong, helps only inserting in dilution and with the hand making accessible.
In case of wear only help new Hydros and if there are minor contamination helps this additive.
For the price I would recommend anyone to try first the additive, is definitely worth a try.
For me it has immediately brought peace together with new oil / filter. Minimal effort and low cost.
Power exactly what it should, therefore 5 stars
