No more high-mileage oil

Heads, valves, pistons, rods, crankshaft, etc...

Moderators: Helpinators, Moderators

Post Reply
entirelyturbo
quasi-mod-o
quasi-mod-o
Posts: 6000
Joined: Thu Dec 05, 2002 7:06 pm
Location: Tampa, FL

No more high-mileage oil

Post by entirelyturbo »

So I'm now at 162k, and have been running Valvoline High-Mileage 10W40 oil, I'd say, for the last 14k miles.

I have seen absolutely NO reduction in the amount of oil the car either leaks or burns off. My oil pump still leaks (from the relief valve I think) and my driver's cam carrier O-ring still leaks.

The biggest improvement I have seen in the reduction of oil loss was resealing my oil pan about 3k miles ago. I didn't really notice how much it was actually leaking until I took the old Xmember off.

That said, I am now running plain old Valvoline 10W40 oil. I refuse to run synthetic, and as mentioned, I have seen no return on my extra investment in the high-mileage oil.

Sometime in this century, I will replace my oil pump completely, and try redoing the cam seals one more time, including the cam carrier O-ring, and then I should have fixed all my significant oil leaks the RIGHT way, instead of trying to put a band-aid on it with the high-mileage oil.
"Der Wahnsinn ist nur eine schmale Brücke/die Ufer sind Vernunft und Trieb"

*Formerly DerFahrer*

@entirelyturbo on social media, including Facebook, Instagram, Twitter, and TikTok
isotopeman
Second Gear
Posts: 291
Joined: Thu May 13, 2004 6:54 am
Location: Fayetteville AR
Contact:

Post by isotopeman »

My girlfriend's car burns that stuff as well. We used 5qts going to the Everglades and back in her Saturn w/ <100k miles on it.
δ13/12C = -17.7 &#0137;
δ15/14N = 9.4 &#0137;
wallgood358
First Gear
Posts: 158
Joined: Sun Nov 19, 2006 3:14 am
Location: Tucson, AZ

Post by wallgood358 »

Run a thicker oil for a starter. 5w 50 is what i have run in leaky cars and it slows it down substanitally. High mileage oils are not to stop leaks per se, they are mre made with conditioners to help lengthen the life of your car and help keep thinks from deteriorating as fast
Post Reply