Originally Posted by Jambbii
I was thinking about going to a 5w-40 vs 0w-40 in my ram because I live in the land of scorched earth. When I tow it is from on thousand feet above see level to almost 8 thousand feet in less than 2 hours and things get pretty hot. There are no signs of issues but was thinking this may be an extra level of protection in this environment. I wouldn't imagine such a small increase would affect the VVT but would rather get some input before I gave it a shot.

Thanks

5/40 & 0/40 are the same viscosity at operating temperature, so no difference ,,,only difference is at cold start up,,,, I run 5/50 Lucas in my 2020 T/A 392 Challenger because I am in Southeast Texas. no problems, the Lucas label even says made for the Gen3 Hemi

Last edited by CSK; 07/15/23 12:04 AM.
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5