For example, if one were to take a synthetic 5w20 and mix it with a synthetic 5w30 of the same brand, then would you end up with a 5w25, or just a crankcase that's 1/2 5w20 and 1/2 5w30?
Reason I ask is I've got a few leftover quarts of Mobil 1 0w40, plenty of 10w40 HM, and for some stupid reason bought a few quarts of 5w40 TDT today. I've been running 10w40HM as of late in the Mercedes, but have given thought to making a Mobil 1 "super mix" for the next oil change, with 1/3 0w40, 1/3 5w40 TDT, and 1/3 10w40 HM...
How does that sound - a Mobil 1 5w40 Turbodiesel High Mileage that meets MB229.5 spec...
Reason I ask is I've got a few leftover quarts of Mobil 1 0w40, plenty of 10w40 HM, and for some stupid reason bought a few quarts of 5w40 TDT today. I've been running 10w40HM as of late in the Mercedes, but have given thought to making a Mobil 1 "super mix" for the next oil change, with 1/3 0w40, 1/3 5w40 TDT, and 1/3 10w40 HM...
How does that sound - a Mobil 1 5w40 Turbodiesel High Mileage that meets MB229.5 spec...