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DesertDriver · 06-02-2010, 09:28 PM

I purchased my '00 S three months ago and I am looking at my first oil change. So far having trouble finding Castrol Syntec 10W40 in volume in So. AZ. Maybe a sign?

Is the M1 10W40 an okay alternative? Should I even be using the 10W40 or do I need to stick with 5W40? The temps are approaching 100 F fast here and the winter temps are only around 30-40F.

Any advice would be appreciated. I have read oil grade threads until my eyes bled and I felt like this

I guess I just need to make a decision...

Thanks for the help.

06-02-2010, 09:28 PM	#19
DesertDriver Registered User Join Date: Feb 2010 Location: Tucson Posts: 2	Just in case the horse wasn't dead yet... I purchased my '00 S three months ago and I am looking at my first oil change. So far having trouble finding Castrol Syntec 10W40 in volume in So. AZ. Maybe a sign? Is the M1 10W40 an okay alternative? Should I even be using the 10W40 or do I need to stick with 5W40? The temps are approaching 100 F fast here and the winter temps are only around 30-40F. Any advice would be appreciated. I have read oil grade threads until my eyes bled and I felt like this I guess I just need to make a decision... Thanks for the help.