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EFV-8 Club Forum / General Ford Discussion / motor oil

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Discussion Topic: motor oil -- page: 1 2 3

kirkstad

04-17-2018 @ 8:55 AM

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Joined: Jul 2017

My 36 engine still has the original bore, cam and valves,it's a little tired I'll admit,but at my age so am I.I have been using valvoline straight 40 and I add Marvel Mystery oil to my fuel to keep the valves and seats lubricated.Every winter I take a compression check and every other winter check valve clearances and after 16 years no noticeable change.Most of the failures I have seen are do to after market parts in rebuilt or so called rebuilt engines.I am on the forum a lot, asking questions and I always get great help.
Still learning at 72
Frank

sarahcecelia

04-17-2018 @ 6:47 PM

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Here we go again??!! Don't believe me?? Google: "Why was zinc put in motor oil."Hmmm.....Seems the experts agree with me! How about that.

Regards, Steve Lee

sarahcecelia

04-17-2018 @ 6:50 PM

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I think you may be right about that! It was added when compressions started to go up to prevent motor knock.

Regards, Steve Lee

42merc

04-18-2018 @ 7:22 AM

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Here we go again--I know what zinc is & I know what zinc does.
You are talking apples & oranges.
The man asked about a stock Ford V8 flathead, you're talking about aircraft & problems you had with a used engine with an unknown history.
Any over the counter modern motor oil will satisfy the needs of any STOCK Ford flathead out in the wild.
When valve spring pressure is increased over stock, maybe look at adding extra zinc.

fordmerc

04-19-2018 @ 6:17 AM

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Since we are on "AGAIN",any comments on multi-weight versus single weight oil?

TomO

04-19-2018 @ 6:28 AM

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Oil with viscosity improvers lubricates better than single viscosity oil.

10W30 oil lubricates like 10W oil when cold and like 30W oil when the oil is at operating temperatures. 30W oil is pretty stiff at cold temperatures and a good lube at operating temperatures.

Tom

thunder road

04-19-2018 @ 6:54 PM

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Valvoline:VR 1 racing oil, and Joe gibbs hot rod oil both contain high zinc levels. The Valvaline VR1 contains 1200 ppm zinc content , and the calcium level is 0.210. The Joe gibbs hot rod oil contains 1300ppm of secondary zinc which is the most active, and the calcium level is 0.272. Both of these oils work the best in cars and trucks built before 1990 with flat tappet cams and lifter's because the zinc levels are high and the calcium levels are low.The calcium is the detergent in the oil, by Adding a bottle of ZDDP to a motor oil with high detergent is a waste of time because the detergent washes away the zinc from the cam and lifter's ect.

Domenic

TonyM

05-19-2018 @ 10:12 AM

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Tom O.

Hello.

What weight oil do you use in your blue Mercury coupe?

Thanks

TonyM

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78-730B

TomO

05-20-2018 @ 7:47 AM

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Tony, I use 10W-30 oil in both of my cars.

Are your traveling to Dearborn on Monday, june 11? If so, give me a call.

Tom

TonyM

05-20-2018 @ 12:58 PM

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TomO.

Will do.

TonyM

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