Have an oil change coming up. Recently came into a buttload of Delvac syn 10w30 (see below) via a foreclosure sale.
Been running the Walmart Super tech 15w40 since 150k (0-150k = Rotella 15w40). Would like to eventually transition to the Delvac if it’s not a problem but still have a 2 gal jug of the Super tech 15w40.
Would it be a problem to mix 8qts Mobil Delvac Extreme synthetic blend diesel engine oil 10W-30 with 7qts SuperTech 15w40 Heavy Duty Diesel engine oil?
Or should I just go straight Delvac synthetic IF it’s ok to even make the switch.
Been running the Walmart Super tech 15w40 since 150k (0-150k = Rotella 15w40). Would like to eventually transition to the Delvac if it’s not a problem but still have a 2 gal jug of the Super tech 15w40.
Would it be a problem to mix 8qts Mobil Delvac Extreme synthetic blend diesel engine oil 10W-30 with 7qts SuperTech 15w40 Heavy Duty Diesel engine oil?
Or should I just go straight Delvac synthetic IF it’s ok to even make the switch.
- 2003 Ford F250 SuperDuty (165k miles)
- Live in Louisiana
- Just a beater - Lite mileage (>15m per day)
- No hauling, heavy loading, etc…