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Re: Hot synthetic oil in dr.sportster's Ducati..r
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Posted by Jon Hagen on November 24, 2006 at 07:44:44 from (69.26.29.209):
In Reply to: Re: Hot synthetic oil in dr.sportster's Ducati..r posted by RB/CT on November 24, 2006 at 06:27:24:
My first experience with Mobil 1 synthetic oil was when I bought a used and abused Porsche with Mobil 1 in the crankcase. This little air cooled engine was tired to the point that it consumed a $4 qt of Mobil 1 in the first 400 miles. I decided I was not going to pay that kind of oil cost in somthing that consumed oil at that rate,so my favorite Mobil mineral oil went in the Porsche. The imediate result that the oil temp guage in the Porsche showed a 50 degree INCREASE with mineral oil and oil consumption past those tired rings was now 200 miles per qt.
That sold me on the stuff,the mobil 1 went back in the Porsche,and everything else,gasoline powered that I have owned in the last 25 years.
The stuff (Mobil 1) has been great in all the little Briggs/Wisconsin/Kohler air cooled stuff that works hard. Briggs says multi weight synthetic oil is the only thing they recommend for any load at any temp. I find that oil consumption with the little Briggs engines is very low with easy cold starting and no scoring or oil consumption problems when you work the heck out of them in hot weather,sometimes with grass clippings half clogging the cooling air screen. One fellow on this site claimed he he had one hot enough with Mobil 1 in the crankcase from a clogged cooling system,that the paint started to brown at the top of the crankcase without scoring the piston/cylinder. I don't understand DR's motorcycle oil heat problem,I have never seen that in anything air cooled. I have no experience with the Mobil 1 V twin oil used,but I wonder if the viscosity had anything to do with it. Would be interesting to heat the motorcycle builders or Mobil's take on what the problem was.
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