The last two mornings my F150 let out some wonderful tapping/clanking for 2-3 seconds on the first morning startup. Overnight temps aren't too bad....around the mid-low teens I think (it was 17F at 5:45 am).
This is the first and only two times the truck has made the cold morning startup noises since I switched to Chevron Supreme 5w-30. I guess I shouldn't be surprised since this has been happening since the truck was new regardless of motor oil used. Some have been better than others but none have eliminated the condition.
I'm convinced there is no way at all to eliminate this first startup/cold morning knock completely. It is apparent, based on the various brnads/weights and filter combos I've tried, that it can be minimized as some have been very loud and taken as long as 15 seconds to quite down. Thus far the Chev Sup/Motorcraft filter combo has been one of the best combos.
I don't know if this makes a diff but the Chevron 5w-30 currently in the pan has 4500 miles on it already. Temps have been lower than the last two days and the noise didn't happen earlier in the OCI. Could it be that this is an indication the oil has about had it?
Mikep
This is the first and only two times the truck has made the cold morning startup noises since I switched to Chevron Supreme 5w-30. I guess I shouldn't be surprised since this has been happening since the truck was new regardless of motor oil used. Some have been better than others but none have eliminated the condition.
I'm convinced there is no way at all to eliminate this first startup/cold morning knock completely. It is apparent, based on the various brnads/weights and filter combos I've tried, that it can be minimized as some have been very loud and taken as long as 15 seconds to quite down. Thus far the Chev Sup/Motorcraft filter combo has been one of the best combos.
I don't know if this makes a diff but the Chevron 5w-30 currently in the pan has 4500 miles on it already. Temps have been lower than the last two days and the noise didn't happen earlier in the OCI. Could it be that this is an indication the oil has about had it?
Mikep