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Old 03-14-2019, 02:05 PM   #1
adileo
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Default Oil change

Hi guys

On my 39 coupe (no filter) I change oil every 1k.

Whatís suggested interval for 51 F1 with filter?
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Old 03-14-2019, 02:19 PM   #2
19Fordy
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Default Re: Oil change

Here's a bunch of opinions.
https://www.fordbarn.com/forum/showt...nge+oil+filter
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Old 03-14-2019, 02:40 PM   #3
estout81
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Default Re: Oil change

Per the '48 owners manual every 2500 miles.
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Old 03-14-2019, 03:38 PM   #4
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Default Re: Oil change

The interesting thing about this is that, while the oil change interval is stated as 2500 miles, the owners manual (at least for my 1951 car) calls out a chassis lube at every 1000 miles. I can't believe a truck (the way they were used) would be any more.
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Old 03-14-2019, 05:29 PM   #5
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Default Re: Oil change

We're talking oil change not lub. job.
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Old 03-14-2019, 05:47 PM   #6
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Default Re: Oil change

I know. I just mentioned it because it is much shorter than the oil change interval and most people don't know it. But they should.
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Old 03-14-2019, 06:32 PM   #7
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Default Re: Oil change

Interesting, I’ll go some what in between and change at 2k. Thanks

I also didn’t know lube every 1k. I’ll hit that more often- thanks
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Old 03-14-2019, 06:36 PM   #8
Jack E/NJ
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Default Re: Oil change

Anybody who is somebody knows the answer. Looks like adileo is finally somebody. 8^) Jack E/NJ
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Old 03-14-2019, 07:22 PM   #9
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Default Re: Oil change

It seems to me that with the quality of today's oils, even 3,000 without a filter is not bad.
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Old 03-14-2019, 10:24 PM   #10
TomT/Williamsburg
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Default Re: Oil change

Quote:
Originally Posted by paul2748 View Post
It seems to me that with the quality of today's oils, even 3,000 without a filter is not bad.
I do not run an oil filter as well and Iíve done 3k plus when on my LA Roadster trip - changed it in Pueblo, CO on my way back. That was probably closer to 4K actually ......
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Old 03-15-2019, 05:53 AM   #11
51 MERC-CT
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Default Re: Oil change

Seems that applying oil change intervals as set forth back when the oil was inferior to the oil that is available today should be taken into consideration.
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Old 03-15-2019, 11:22 AM   #12
Scotty's 52 F3
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Default Re: Oil change

Oil lab results will give the best indication of what it should be. Most of us just don't do it.
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Old 03-15-2019, 05:25 PM   #13
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Default Re: Oil change

Quote:
Originally Posted by Scotty's 52 F3 View Post
Oil lab results will give the best indication of what it should be. Most of us just don't do it.
I sent my oil for analysis after a 3500 mile trip plus some local driving (maybe 500 miles). Mobil1 in a clean, recently rebuilt engine. I run a filter with a NAPA Gold element.

The analysis showed the oil was in very good condition, no need to change it on any of their criteria. See attached.
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File Type: pdf Oil Analysis - Redctd.pdf (938.8 KB, 28 views)
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Old 03-15-2019, 07:01 PM   #14
51 MERC-CT
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Default Re: Oil change

Quote:
Originally Posted by Ross F-1 View Post
I sent my oil for analysis after a 3500 mile trip plus some local driving (maybe 500 miles). Mobil1 in a clean, recently rebuilt engine. I run a filter with a NAPA Gold element.

The analysis showed the oil was in very good condition, no need to change it on any of their criteria. See attached.
Don't know if I am reading the report right but are they saying to leave the oil in and check it again in 5000 miles ?
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Old 03-15-2019, 08:22 PM   #15
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Default Re: Oil change

Quote:
Originally Posted by 51 MERC-CT View Post
Don't know if I am reading the report right but are they saying to leave the oil in and check it again in 5000 miles ?
They knew I'd changed it for the analysis, so what they meant was, "Run the new oil for 5000 miles and have it tested".
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Old 03-16-2019, 07:46 PM   #16
1927Tudor
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Default Re: Oil change

I use one of these.....

http://www.lubricheck.com/
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Old 03-16-2019, 08:17 PM   #17
51 MERC-CT
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Default Re: Oil change

Quote:
Originally Posted by 1927Tudor View Post
I use one of these.....

http://www.lubricheck.com/
These units probably work well but those in the flathead community who use oil with ZINC or use ZINC additive may want to pay attention to this statement by the manufacturer of the tester.

"Some specialty or extended use oils with high levels of additives, or with metals such as zinc or molybdenum, may give falsely negative results. Examples include the Amsoil 'Signature' series , Redline oils, Castrol TWS and specialty, non API rated Royal Purple oils."
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Old 03-17-2019, 12:46 AM   #18
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Default Re: Oil change

I run a 95% oil filter setup and still change oil at 1000 miles or less. I grease the steering components at half that. In my opinion oil and grease changes are cheap preventative maintenance.
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Old 03-17-2019, 02:41 AM   #19
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Default Re: Oil change

On such machines, the more often the change the better. Selected option 1K is just great.
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Old 03-17-2019, 03:38 PM   #20
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Default Re: Oil change

One of the benefits of modern oils is the detergents that keep dirt in suspension until removed by the filter. But with no filter I would run non detergent oil and change more often.
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