[EMAIL PROTECTED] wrote: > redline, however, seems to recommend > against using hte 20W-50 in ordinary street cars and recommends the > 10W-30. any thoughts?
Look at the rating to make sure it's proper spec for the car you want to use it in. Also look at the product spec data, which should include the pour point. If the pour point is at or near the lowest temperature you are likely to experience, then don't risk it. I know that AMSOIL has a 20w50 that is advertised as a 'leave-in' heavy weight synthetic for four-season use, but OTOH (IIRC, etc) heavier weights of Mobil 1 are not suitable for year-round use. Mac
