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Old 01-26-2021, 12:16 PM   #1
Oldgearz
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Default Engine Oil

Hate to start WWIII, but is PennGrade SAE 40 high zinc and phosphorus used by Aers very much?
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Old 01-26-2021, 12:21 PM   #2
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Default Re: Engine Oil

Not by me. 10-30 or 10-40 depending on what time of year. Zinc is not needed in a Model A engine.
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Old 01-26-2021, 01:13 PM   #3
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Default Re: Engine Oil

My engine rebuilder recommended Valvoline VR-1 high zinc racing oil, 10W-30. Given what I spent on the rebuild, I follow his recommendations.
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Old 01-26-2021, 01:20 PM   #4
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Default Re: Engine Oil

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Originally Posted by redmodelt View Post
Not by me. 10-30 or 10-40 depending on what time of year. Zinc is not needed in a Model A engine.
Well stated, the perfect answer !
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Old 01-26-2021, 03:10 PM   #5
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Default Re: Engine Oil

The guys at the shop that rebuilt my engine specifically suggested higher zinc level oil. I use the Lucas "Hot Rod & Classic Oil". Good price and no concern about the high pressure sliding surfaces on tappets and gears. Maybe the Model A does not have high pressures on the tappets? I do not know but I wonder how good the cam profiles were 90 years ago. Today's modern oils actually limit the zinc to very low levels and today's engines are made for that.
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Old 01-26-2021, 04:51 PM   #6
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use a 10-30 or 10-40 that is all you need unless the engine is worn out. Zinc won't hurt anything.
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Old 01-26-2021, 05:25 PM   #7
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Default Re: Engine Oil

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I use the Lucas "Hot Rod & Classic Oil".
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Old 01-26-2021, 05:47 PM   #8
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Default Re: Engine Oil

use motor oil
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Old 01-26-2021, 08:39 PM   #9
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Default Re: Engine Oil

Ted,

Did you mean “used” motor oil, like in the old days! ��

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Old 01-26-2021, 11:42 PM   #10
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Default Re: Engine Oil

My father ran "drain oil" in his coupe..he would buy it for a penny a quart, oil drained out of the cars the local gas station serviced..
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Old 01-27-2021, 12:13 AM   #11
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Default Re: Engine Oil

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My father ran "drain oil" in his coupe..he would buy it for a penny a quart, oil drained out of the cars the local gas station serviced..
Most stations used a service where the old oil was re-refined and re-sold as reclaimed oil. I doubt he ran dirty oil, there would be no good doing so.
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Old 01-27-2021, 01:19 AM   #12
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Default Re: Engine Oil

Thats nice,you doubt a story told to me by my father..take a minute,think about that..
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Old 01-27-2021, 02:14 AM   #13
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Thats nice,you doubt a story told to me by my father..take a minute,think about that..
I just think he was buying reclaimed oil (drain oil that is re-refined) and called it what he did. Think about it. Why change oil if you are just putting dirty oil back in?
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Old 01-27-2021, 02:15 AM   #14
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Default Re: Engine Oil

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Thats nice,you doubt a story told to me by my father..take a minute,think about that..
Your story is very authentic and was repeated over and over. My father owned a service station and was part of that process.
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Old 01-27-2021, 08:19 AM   #15
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Default Re: Engine Oil

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I just think he was buying reclaimed oil (drain oil that is re-refined) and called it what he did. Think about it. Why change oil if you are just putting dirty oil back in?
They were not changing oil, they were adding a quart to stop the engine from seizing up. Times were tough, think about it !
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Old 01-27-2021, 08:45 AM   #16
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Default Re: Engine Oil

Many moons ago when I pumped gasoline, the station owner had a 275 gallon oil tank in a back room. It contained the residual oil that dripped from every can of oil used at the station. The oil from that tank was sold as "bottle oil" at a lower price than the canned oil. This practice was common place back in the 1950s and 1960s. In my garage these days, I continue this practice of draining residual oil from containers.
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Old 01-27-2021, 09:51 AM   #17
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Default Re: Engine Oil

There is a product called oil saver:

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Old 01-27-2021, 10:02 AM   #18
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Default Re: Engine Oil

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Originally Posted by Conaway2 View Post
My engine rebuilder recommended Valvoline VR-1 high zinc racing oil, 10W-30. Given what I spent on the rebuild, I follow his recommendations.
My builder recommended Valvoline Racing oil 20W-50.
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Old 01-27-2021, 10:58 AM   #19
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Default Re: Engine Oil

Back, before they put detergents in the oil, a lot of people put used oil aside and let it sit for a few weeks. All or most of the contaminants would settle out and "clean" oil could be scooped out for re-use.

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Old 01-27-2021, 11:21 AM   #20
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Default Re: Engine Oil

The guy I worked with does somewhat the same thing. He drains the oil from each container into his oil cans. When adding fresh oil to an engine, I let each one drain for a while before adding the next one.
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