paulgonz26 wrote:I use Mobil-1 5W20 Full Synthetic changed every 5,000 miles. I've heard good things about Penzoil Platinum's line of full synthetic oil and how they make their base oil from natural gas instead of crude oil so I'm thinking about trying it out next time around.
I just started using Pennzoil Platinum full synth. with a Motorcraft FL500S filter
Every 4 to 5k miles. Wife's Chrysler came factory delivered with Pennzoil.
FCI doesn't recognize mobil 1 as an approved oil, so I switched in 2016.
I'm at 41K miles right now (11K on a new engine, 3 oil changes so far).
At 30k, my original 3.0L let go (# 6 cylinder failure, 2 years ago now).
Ford replaced it with a re-manufactured engine.
I always used Mobil 1 5w20 and a mobil1 filter on the original. I just wonder if the mobil 1 filter
was too restrictive, as I read many articles about the #6 failure on these V6s due to oil problems.
Just my own feelings, but this is the first engine out of 45 years of car ownership that I had fail.
Ford didn't even question me on the failure, they just replaced it without hesitating.