Mixing viscosities
04-08-2003, 02:54 PM
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Mixing viscosities
I'm about a quart low and not ready to do a full oil change. My local Walmart only has Mobil 1 0-30. Is there a problem mixing in a quart of 0-30 with the 0-40 that's in the engine? The temp in LA (where I live) is in the 70's these days.
04-08-2003, 02:56 PM
#2
I was told that 40 weight is the lowest to go. I almost did the same thing but then referenced the post Loren did about the oils, and 0-30 was not an approved Porsche weight. I got a couple of boxes from Kragan they had it in stock auto zone also did, but pep boys did not.
