My list of different oils I have run in my car...
Havoline Pro DS 5w30
Havoline Pro DS 10w30
Havoline high mileage 5w30
Havoline 5w30
Cam2 Superpromax 5w30
Cam2 full synthetic 5w30
Valvoline full synthetic 5w30
Valvoline high mileage 5w30
Valvoline white bottle 5w30
Castrol Magnatec 5w30
Castrol high mileage 5w30
Castrol Edge EP 5w30
Castrol Edge 0w30
Pennzoil Ultra 5w30
Pennzoil Ultra platinum 5w30
Pennzoil Gold 5w30
Lubrigold 5w30
Coastal synthetic blend 5w30
Napa full synthetic 5w30
Napa full synthetic high mileage 5w30
Federated Auto parts full synthetic 5w30
Mobil Super synthetic- 5w30
Mobil Super- synthetic 10w30
Mobil Special 5w30
Mobil Super- 5w30
Carquest full synthetic high mileage 5w30
Based upon this.... I think running different oil every other run.... Works ok
Havoline Pro DS 5w30
Havoline Pro DS 10w30
Havoline high mileage 5w30
Havoline 5w30
Cam2 Superpromax 5w30
Cam2 full synthetic 5w30
Valvoline full synthetic 5w30
Valvoline high mileage 5w30
Valvoline white bottle 5w30
Castrol Magnatec 5w30
Castrol high mileage 5w30
Castrol Edge EP 5w30
Castrol Edge 0w30
Pennzoil Ultra 5w30
Pennzoil Ultra platinum 5w30
Pennzoil Gold 5w30
Lubrigold 5w30
Coastal synthetic blend 5w30
Napa full synthetic 5w30
Napa full synthetic high mileage 5w30
Federated Auto parts full synthetic 5w30
Mobil Super synthetic- 5w30
Mobil Super- synthetic 10w30
Mobil Special 5w30
Mobil Super- 5w30
Carquest full synthetic high mileage 5w30
Based upon this.... I think running different oil every other run.... Works ok