Quote:
|
Originally Posted by BlazerLT
Rick, what oil filter are you using?
What grade of oil?
Have you ever done an engine flush?
|
I normally use the AC Delco PF52 filter, however the last two oil changes my local Autozone was out of them, so I bought the STP Brand for this engine. (The only other choice was FRAM, which is a big NO-NO.) I used Castrol GTX 10W-30. (All of the local parts stores and even the Stealerships tell you to use 10W-30 oil here in the Phoenix area. very few of them even carry 5W-30.)
I bought this Truck 1½ years ago and it had 30,000 miles on it and have never done an engine/crankcase flush.
I stopped at My local Autozone and picked up a new Oil change last night on my way home from work and bought Castrol 5W-30 and another STP filter (they're STILL out of AC Delco!). I am going to make an appointment with the Stealer today and will probably have to leave the truck with them overnight so they can hear the noise in the morning upon cold start-up.
I am afraid if I do a crankcase flush or go to the 5W-30 oil, I might mask an even bigger problem, as I do know three things:
1, I have a very loud lifter noise on cold start-up (that just started Sunday morning) that goes away after 2-3 minutes.
2, I seem to be using a little coolant (approx. 1 quart in 1000 miles since my flush in January).
3, There was moisture in the oil filler cap when I checked it yesterday. I wiped the moisture out of the cap and filler neck and will check it again today.
As I stated earlier, I have an extended warranty on this truck and don't want to risk screwing that up. If it is the intake manifold gasket or some other major issue, I don't want to find out after the warranty is over.
Just for the record, what brand of crankcase flush do you recommend?