Just had my 48 chief motor rebuilt ,any recommend oil that I should use during break in ? Thanks
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My builder supplied me with Brad Penn conventional 50W Break-in oil: 3 Qts.
Changed that at 500 miles and have been using Valvoline VR1 conventional 50w high zinc
since. Change often. -
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You are correct, the "W"stands for winter.Originally posted by kitabel View Post
"The "w" in motor oil stands for winter. The first number in the oil classification refers to a cold weather viscosity. The lower this number is, the less viscous your oil will be at low temperatures. For example, a 5W- motor oil will flow better at lower temperatures than a 15W- motor oil. "
Online search quoteComment
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"Teachable moment"
Well this just proves that for important things I can NOT rely on my memory
I was WRONG.
Took a look in the garage (kept one of the old oil containers)
Actually
PENNGRADE
High Performance Break-In Motor Oil
SAE 30
Contains high levels of Zinc and Phosphorus
But I was right about what I am running now, so there's that.Comment
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I run 60w in my Shovelheads.Comment
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Where did you have your motor rebuilt?Comment
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