Oil for high mileage

[Madcarpenter]

"IIRC The NAPA "Platinum" is designed for long intervals and synthetic fluid. A bit overkill if you only run conventional oil. Much better than that Fram you had before, though."

Yeah I considered that, but there seems to be few reviews out there thus far about their newest grade of filter. Was gonna buy 'Gold', but they were pushing 'Platinum' on sale, so... Gotta admit, 10 bucks is the most I've ever spent on an oil filter...

The info I was able to find with help from 'the Google' claims that it's a re-branded Wix's premium filter, and uses a synthetic medium instead of paper. Intended for synthetic oil change intervals for sure, but Castrol's GTX 'High Mileage' is part synthetic, so it'll be in there longer than pure conventional oil.

I was wondering if its higher filtration might hinder flow rate of dino oils, and show up as slightly lower oil pressure on my dash gauge?

[Bob Dillon]

I was wondering if its higher filtration might hinder flow rate of dino oils, and show up as slightly lower oil pressure on my dash gauge?

Any hindrance to flow would should as an increase to the gauge, not a drop.

[renchjeep]

I use NAPA high-mileage 10/30, and NAPA Gold oil filters. Previously used 20/50 oil, as I thought it would "slow down" my oil leak a bit. Guess what...it didn't! Since I replaced my oil pan gasket, no more leak, even with 10/30. As an added bonus, there is a lot less "noise" coming from the engine when started cold. Never really had a rod-knock noise, but with the 20/50, she seemed to "rattle" a bit. Not on initial start-up, but like 10 seconds after, and continuing for 30 seconds or so. Seems to me like oil flow on cold start-up is most important to the 3.8. Glad I figured this out before I damaged bearings etc!