packnrat wrote:
there is a term called stickshun. ( spelling?) a mix of sticky and suck.
i do not know about moble one, is there any cleaners in it?
best to change out oil even 4K miles. and filters every 2K.
filters get part pluged up and a by- pass valve opens up, thus no filtering.
in my diesels i run a " additave" in the fuel. ( need to help clean out the corn oil they water down the fuel with). never in the oil.
lifter problems might require new ones? or clean out the old ones. it is a varnise bulid up in them.
.O and someone said pull a head to fix a lifter???? the lifter side on the cam not in the clyinders. no need to pull a head to do this. not sure what your motor is like but most can be accessed by removing the valve cover.
Stiction is actually stick/friction, and is a coined phrase to describe the momentary friction that causes something like a seal to stick to a tube before the momentary friction is overcome.
Changing oil at 4,000 miles and filters at 2,000 miles is a waste of money and resources. Your choice, but it's wasting money and oil.
Yes, you need to pull the head to fix the lifters. What you're thinking about is the "pushrods and rocker arms". The hydraulic lifters run directly on the camshaft and transfer the lifting force to the valve via the pushrods and rocker arms.