- Joined
- May 14, 2023
- Messages
- 55
- Reaction Points
- 48
- Location
- Chesapeake, VA
- Military
- Navy
- Current Ride
- F250 6.7L Lariat Tremor
Just bought Archoil 9100, 6400, and 6500. Do you use all three?I went 2500 on the factory oil then switched to 5w40 full synthetic with archoil 9100 friction modifier....now I change every 5000