Originally posted by Stazi:
I buy a can or two of Beryyman's for the UIM and then a can or two of Valvoline TB cleaner for the LIM and valves.

Seafoam is an alternative to the Berrymans if you can't find it.



Just don't let too much of it run down inside the engine. Otherwise you will be pulling the plugs to get the engine to turn over.