Quote:
Originally Posted by Mr.MichaelM3
I highly recommened not doing this. I was on vacation this past Friday. I drove to lake george about a 200+ mile drive. Anyway Within the first 30 mins of driving my oil light came on. I called my buddy SAL@AUTOcouture and he said it's better to just ride it out till I got to a local BMW dealership than to put ANY OTHER OIL that is not recommened for our cars. Especially 10w30. However I feel your pain as I was also thinking about doing the same but I drove about 400+ miles all together with just a quart low of oil and no issue.
|
That logic is ridiculous. The addition of one quart of lower viscosity oil will impact the overall kinematic viscosity of the oil (generally around 8 quarts) a negligible amount. Consider that versus the oil pump firing air into your bearings while going around a corner.
I'll add my extra quart of non-10w60 thanks. BTW, oil analysis indicates that the oil quickly shears to a 40wt at operating temps anyway, so the overall viscosity change is even less.
By the way, the manual states that small quantities of non-oem spec make-up oil can be added without issue.