- Joined
- Apr 30, 2022
- Messages
- 26
Good evening. I know there are some post about oils in 5.7 chevys already but I wanted to ask between two of them. I have a 96’ K2500 suburban with the 5.7 Vortec and 102,000 miles doesn't burn a drop. I change my oil every 4k miles. For the past 2 oil changes, 8,000 miles worth, I’ve been running Valvoline High Mileage 5w30 with no issues and great oil pressure. I like Valvoline. In all my other engines, 60s cars, tractors, whatever else I run Rotella T4 10w30. I was wondering what would my 5.7 like better? The Rotella or Valv? The Rotella is obviously Dino and Valv a synthetic. I do mostly town driving about 7 minutes every morning and afternoon, and then all around town not city traffic but averaging 40 mph small towns. Occasionally highway and towing some heavy loads. Overall what should I run? I know it’s a roller cam not flat tapper but I assume the Rotella has a bit more detergents, better add pack maybe? Either way all I’m asking is just a what would you rather. Rotella is $18 a gal, Valv is $26 for 5 quart jug. Thanks all for your input!