Quote:
Originally Posted by dean from bozeman
Here's a question for you old timers or someone who learned from an old timer. Is there a "homegrown" method to determine an oil's viscosity?
Basically, how can you tell whether a car has winter or summer oil?
I remember the Prell shampoo commercial when I was a kid. They would put a pearl into a bottle of Prell and it would slowly sink to the bottom. Now is there a way to test motor oil.
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If you have to severely whip the horse to get it to pull your car, you have summer oil (Grandpa's method ). When Dad told me the story he had a sad look and said "That was mean!"