WM has the M1 0W30 ESP for $27 per 5-quart jug while the M1 5W30 is only sold in expensive quart bottles for $9.87 ea. Both oils are virtually the same at cSt @ 100 degrees C. with the usual slight bump in low temperature performance expected with the 0W oil rating of the M1 0W30 ESP . I would expect more VII's to be included in the 0W30 ESP but was wondering if any of the oil approvals for M1 0W30 ESP included DI engines where perhaps added VII's may not be the best for intake valve deposits ? M1 5W30 ESP would be better in that regards but WM is a no-go price wise while Auto Zone sells M1 5W30 ESP in 5-quart jugs for $37 ea. which is a $10 increase over the available M1 0W30 ESP at WM . While the M1 0W30 ESP should be fine in a mass port injected engine (i.e. gas washing over valves) would you run the M1 0W30 ESP in a DI engine - or consider paying more for the M1 5W30 ESP with reduced VII's ?
I currently use M1 5W30 EP in my vehicles - but both the wife and I are spirited , heavy foot drivers , so having a HTHS cushion of 3.5 minimum would be nice with the M1 Euro ESP oils versus the suspected HTHS of around 2.9 for the M1 5W30 EP .
I currently use M1 5W30 EP in my vehicles - but both the wife and I are spirited , heavy foot drivers , so having a HTHS cushion of 3.5 minimum would be nice with the M1 Euro ESP oils versus the suspected HTHS of around 2.9 for the M1 5W30 EP .