- Joined
- Feb 18, 2022
- Messages
- 6
So I normally run Castrol GTX 10w40 in my '89 Chevy 1500, with a bone stock 350. Being that the temperature is going to start cooling off in a hurry where I live, and Montana Winters have a tendency to be anywhere from flat out bitter to downright brutal, I figure my next OC should be a 5w40. It will also be the first time I've experimented with full synthetic in my pickup as well.
Right now I'm stuck between choosing Castrol edge euro, or Shell rotella T6. I've learned toward the Rotella due to it being a diesel oil and being high in zinc, but I've also heard euro oils are great for these older American V8s as well, so I'm here to consult the experts.
Right now I'm stuck between choosing Castrol edge euro, or Shell rotella T6. I've learned toward the Rotella due to it being a diesel oil and being high in zinc, but I've also heard euro oils are great for these older American V8s as well, so I'm here to consult the experts.