mixing oil

I don't know but it could be a very$$$pricey$$$ experiment.
 
I don't know but it could be a very$$$pricey$$$ experiment.

x2! you can do it , but in the winter it is a bad idea. different oils tend to gel in the winter time clogging up your oil pickup. wait til your bucket is near empty and fill up with the new stuff.

beemer
 
Used to own an Opti and tried the crappy tire brand (cheaper-way cheaper), didn't like like the smell in the morning so went back to merc oil, don't remember noticing any issues with the engine running on part synthetic.

May want to play it safe and take gs and beemers advice though
 
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