Used to be 20k mile intervals right? Change at 10. You'll feel a clogged fuel filter anyway when your vehicle starts to drag and wheeze.
What is the better synthetic diesel oil?
- Thread starter RateNate
- Start date
I'd say for a few changes probably, but longer term you should be able to go back to a longer interval. Biodiesel is a good cleaner in the diesel fuel system. The cleaning action is what will cause the filter issues, not really the overall use of biodiesel.
Just my $0.02
So the '22 6.7 does not allow 15w40 per the manual? I wasn't aware of this until now. What do they call for, the new high fuel economy 10w30 diesel oil spec?
The issue with biodiesel is that it oxidizes easily in the presence of ZDDP. One study that did a 4-ball wear test with diluted oil found a small increase in wear with 1% aged biodiesel in the oil, and a doubling of wear at 5% dilution. Regular diesel actually reduced wear slightly even at 5% dilution.
If the fuel you're using only has ~10% biodiesel, the amount of biodiesel in your oil should always be
The ACEA and MB 229.5x oil standards have engine tests to measure an oil's performance with biodiesel dilution, whereas API CK-4 doesn't seem to have a biodiesel test. MB 229.52 has the most stringent biodiesel tests, but is only available in grades up to 5W.
If the fuel you're using only has ~10% biodiesel, the amount of biodiesel in your oil should always be
The ACEA and MB 229.5x oil standards have engine tests to measure an oil's performance with biodiesel dilution, whereas API CK-4 doesn't seem to have a biodiesel test. MB 229.52 has the most stringent biodiesel tests, but is only available in grades up to 5W.
Yes. In temps above 0 10-30 and below 0 5-40 but 5-40 is acceptable year round so that’s what I run. Would like to have a synthetic 10-40 to be honest.
