Best oil
CF Community Team
Joined: Oct 2004
Posts: 19,366
Likes: 5,244
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
High ZDDP is not necessary in our babies nowadays!!!It was only really necessary with flat tappet cams. This is the "high friction area" that NEEDS ZDDP!! I learned/researched this the hard way after burning up a couple of cams breaking in a new big block in my shark
!! Found out "modern" oils are low in ZDDP,,and for flat tappet cam you either need an additive or run diesel oil!! Modern motors with roller cams are good to go,,any good quality synthetic far out performs the older oils!!
!! Found out "modern" oils are low in ZDDP,,and for flat tappet cam you either need an additive or run diesel oil!! Modern motors with roller cams are good to go,,any good quality synthetic far out performs the older oils!!
I use Mobil 1 5W 30 and an AC/Delco PF46 in my C5. My old Flat Tappet motor cars get Rotella 15W 40 and Wix filters. Wix also makes an excellent filter for the C5 as well.
