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Old 06-06-2010, 04:05 PM
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Anyone Using Schaeffer's Synthetic Motor Oil?

Is anyone using Schaeffer's fully synthetic motor oil? What are your impressions? I'm getting ready to install an oil filter by pass system and I'm thinking about going synthetic at the same time.
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Old 06-06-2010, 04:12 PM


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Im running the 5w40. Love the stuff. Best oil Ive ever bought.

Better mileage. Better cold starts. Runs quieter
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Old 06-06-2010, 04:23 PM
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we use the synthetic blend at work in all the semis and run the 10w30 synthetic blend in all the gas motors. you get free oil samples too. the mechanic loves it
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Old 06-07-2010, 05:09 AM
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I ran the 5w40 full synthetic until my last oil change when I switched it to Amsoil 5w40 just for a comparison. Those are the 2 best oils on the market as far as I am concerned. Just be aware that your bypass filter isn't going to give you much in the way of extended drain intervals, but cleaner oil is always good news for the injectors.
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