07-16-2003, 09:33 AM
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Senior Club Cobra Member
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Join Date: Mar 2001
Location: Southern Connecticut,
CT
Cobra Make, Engine: SPF - 351W, 944 non-turbo
Posts: 2,105
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Not Ranked
Paraffin oils are regular oils. Synthetic oils are "built" from mostly ethylene molecules to exactly what the chemist wants.
Multi-viscosity oils act like the first number when cold and the second number when hot. That being said, a 5W-30 oil would have the viscosity of a 5 weight at 20 degrees and the viscosity of a 30 weight at 200 degrees. Even the Winston Cup guys use multi-viscosities oils, mostly synthetic.
Bob |
Hybrid Mode
