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05-20-2015, 06:50 PM | #1 |
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5w/20 oil OK to use?
yes I am hanging on... I have several cases of 5w/20 left over from a modern car we sold.
Can I use it in my Model A, unknown history, runs well, no smoking? Should I blend it with straight 30w, or is it OK on its own? Maybe a little STP additive? |
05-20-2015, 06:54 PM | #2 |
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Re: 5w/20 oil OK to use?
i wouldnt use it or mix it with anything to use it.
if you were close by i would take it off your hands, as many newer cars spec for that Last edited by Mitch//pa; 05-20-2015 at 07:56 PM. |
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05-20-2015, 07:11 PM | #3 |
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Re: 5w/20 oil OK to use?
I would not use in a Mural Asell it to friendwrong oil for that car goodluck
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05-20-2015, 07:54 PM | #4 |
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Re: 5w/20 oil OK to use?
Too thin !
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05-20-2015, 08:05 PM | #5 |
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Re: 5w/20 oil OK to use?
Too thin for me, I use 20w 50w in mine, hot down here..
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05-20-2015, 08:52 PM | #6 |
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Re: 5w/20 oil OK to use?
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Although it is much thinner than what most of us use, it no doubt would keep the metal components apart. When building a high performance motor, it is important to have as much oil flowing through the bearings as possible (to cool them). Might even find that it is better than thick oil. It is worth noting that oil film strength is not so closely related to viscosity as it used to be because of the additives they put in there nowadays. I bet I get lots of feedback on that one!!!
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05-21-2015, 12:37 AM | #7 |
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Re: 5w/20 oil OK to use?
Crossing Russia mid-winter I MIGHT use it.
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05-21-2015, 02:21 AM | #8 |
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Re: 5w/20 oil OK to use?
I've got a mix of 20/50 and 10/40 in mine
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05-21-2015, 11:16 AM | #9 |
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Re: 5w/20 oil OK to use?
Why not use it in your 'modern' cars ? Most cars within the past decade call for that [ if not full syn].
I wouldn't use it in an 'A'. I also don't believe in additives like STP or mixing oils. |
05-22-2015, 01:30 AM | #10 |
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Re: 5w/20 oil OK to use?
If it were 5W-30, it'd be perfectly fine, but 5W-20 MAY be a little light when hot.
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05-22-2015, 02:13 AM | #11 |
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Re: 5w/20 oil OK to use?
Should be fine in winter.
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05-22-2015, 03:49 AM | #12 |
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Re: 5w/20 oil OK to use?
I would sell it and use the proceeds to buy a more suitable oil.
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05-22-2015, 07:29 AM | #13 | |
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Re: 5w/20 oil OK to use?
Quote:
http://www.bobistheoilguy.com/motor-oil-101/ |
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05-22-2015, 08:27 AM | #14 | |
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Re: 5w/20 oil OK to use?
Quote:
I can imagine late model engines can get away with thinner oil due to tighter clearances and a better oiling system than engines that were designed in early 1900's. I have to agree with most of the responders to this thread - Use the 5W20 in newer cars as called for by the engine designers.
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05-22-2015, 10:42 AM | #15 |
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Re: 5w/20 oil OK to use?
I would not use it in my lawn mower !
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05-22-2015, 02:16 PM | #16 |
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Re: 5w/20 oil OK to use?
Not knowing much about this question but I would agree with this comment. It would seem like where you lived and what time of year is was.
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05-22-2015, 04:51 PM | #17 |
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Re: 5w/20 oil OK to use?
Modern low end multi-viscosity oils enable new car makers to achieve the MPG figures required by Gov.
In an A, I use SAE 30HD. I would switch to SAE 20 HD if cold weather usage is planned. Old timers who came into our family Texaco in the 1950's used SAE 20 year 'round in southern New England. Rocketsled |
05-23-2015, 01:23 AM | #18 | |
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Re: 5w/20 oil OK to use?
Quote:
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05-23-2015, 09:32 AM | #19 |
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Re: 5w/20 oil OK to use?
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05-23-2015, 03:35 PM | #20 | |
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Re: 5w/20 oil OK to use?
Quote:
MOST people (inc mechanics and piles of people on here) still don't understand it (even if they think they do )
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