I recently bought a 1979 Bronco with the original 400 V8 and have noticed a ticking sound when the truck is first started cold. It last for 4-5 seconds then goes away. I'm running 20w50 and a FL1A filter. Is the oil too heavy for it?
My Chilton manual states 20W-50 is okay if you never see temps below 20 deg. F, also shows 10W-30 or 10W-40 good for zero to 100 deg.
I would probably try 10W-40 at your next oil change and just see how you like it. It will protect you engine just fine and may pump to critical areas a little quicker. The downside is you may have slightly lower oil pressure once the engine is hot, depending on clearances.
A start up ticking sound would be heard in my older higher mileage Ford trucks when they needed an oil change. Changing it would solve this.
Running a thinner oil wouldn't be the solution to ticking imo.
How's your oil pressure?
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.