Good oil used?
March 26th, 2021, 04:28 AM
#4
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Location: Harrison, Michigan
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March 26th, 2021, 06:17 AM
#6
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Location: central Indiana
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I heard the zinc content of the Rotella oil was reduced from its previous recipe, but even now it has more zinc than regular oil.
If your using a flat tappet cam with pretty heavy valve springs, I’d suggest using a racing oil like Valvoline VR1. If it’s a well worn engine with a mild camshaft/springs, the Rotella will probably be fine.
If your using a flat tappet cam with pretty heavy valve springs, I’d suggest using a racing oil like Valvoline VR1. If it’s a well worn engine with a mild camshaft/springs, the Rotella will probably be fine.
March 26th, 2021, 06:35 AM
#7
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Join Date: Aug 2011
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Some manufacturers state 5 years as a shelf life. Is it to get us to buy more oil? I don't know. Is the additive package breaking down? Same, I don't know.
It could be to keep users reasonably close to proper modern oil specs for the majority of cars on the road to reduce liability.
Saw a minute amount of "silt" on the bottom of a sealed oil can that had been setting for a very very long time in a shed. Have also noticed the color of oils getting darker that have sat for many years. Maybe that oil was dark in color when they were made.
It could be to keep users reasonably close to proper modern oil specs for the majority of cars on the road to reduce liability.
Saw a minute amount of "silt" on the bottom of a sealed oil can that had been setting for a very very long time in a shed. Have also noticed the color of oils getting darker that have sat for many years. Maybe that oil was dark in color when they were made.
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Tedd Thompson
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June 14th, 2012 07:28 PM
