- Joined
- Feb 18, 2022
- Messages
- 6
I just bypassed the oil cooling system on my 1989 silverado, 350/4wd after dealing with leaky lines and bad fittings from the start. It finally blew out a fitting going down the highway so i figured any advantage the cooling system has can't possibly outweigh the damage of losing losing my oil going down the highway.
More to the point of my story, though: Since the oil is now conceivably going to be running at a higher temperature, would this warrant running a heavier oil? The truck has typically gotten 5w30 winter, 10w30 spring/summer all dino oil and tolerates it as well as you could ask a 30 year old truck to. Burns a little but thats to be expected. Should I kick it up to a good 10w40 or similar weight at this point?
More to the point of my story, though: Since the oil is now conceivably going to be running at a higher temperature, would this warrant running a heavier oil? The truck has typically gotten 5w30 winter, 10w30 spring/summer all dino oil and tolerates it as well as you could ask a 30 year old truck to. Burns a little but thats to be expected. Should I kick it up to a good 10w40 or similar weight at this point?