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09-08-2019, 08:51 PM | #1 |
Junior Member
Join Date: Sep 2014
Location: West Kelowna BC
Posts: 13
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1953 239 flat head
I am a new owner of a 53 F100 from British Columbia. It’s a stock 239” flat head.Time to do an oil and filter change. What type of oil do guys recommend? I’ve been told to use 15/40 Diesel engine oil. What’s your thoughts. It is only a fair weather driver and stored in a heated dry shop so winter driving won’t be an issue. Any advice and information will be appreciated! Thx!
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09-08-2019, 09:56 PM | #2 |
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Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,415
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Re: 1953 239 flat head
Welcome to "The Barn"! Regular old 10-30, unless the engine is completely worn out and needs more. These old flatheads have much lower valve spring pressure than the typical OHV engine, so you don't have to go nuts buying oil. One thing you should be aware of; I don't know about trucks, but the manual for my '51 club coupe says to do a chassis lube every 1000 miles! I have the chassis lubed a couple of times a year, and one of those times. I change the oil and filter. I think a lack of maintenance is the primary reason for people complaining about the front suspension problems on these vehicles.
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09-08-2019, 10:05 PM | #3 |
Junior Member
Join Date: Sep 2014
Location: West Kelowna BC
Posts: 13
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Re: 1953 239 flat head
Thanks for the info! I agree with you on the chassis lube. It was a frame off restoration when I bought it, so, I want to do my best to keep on top of the maintenance.
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09-08-2019, 10:11 PM | #4 |
Senior Member
Join Date: Apr 2018
Location: Chelmsford, ON Canada
Posts: 541
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Re: 1953 239 flat head
Tubman beat me to it, but you will get several different opinions on what oil to use. I have a stock "46 flathead 8, an I made the choice to use Shell Rotella T4 15-40 in my engine. I get good oil pressure and it keeps the engine clean. Available in Walmart in 2 1/2 gallon jugs. About C$45.00 in Canada. Left pic is idle, right pic is road speed.
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09-08-2019, 10:32 PM | #5 |
Junior Member
Join Date: Sep 2014
Location: West Kelowna BC
Posts: 13
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Re: 1953 239 flat head
Thank you for your info as well! Looking at your gauges, I see that my pressures are about the same as yours. That’s good to know! Another buddy told me to use chevrons delo 400 oil, but it’s not so easy to get, so, want to use something easier to get and not bounce around from brand to brand.
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09-08-2019, 10:45 PM | #6 |
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Join Date: May 2010
Location: MN
Posts: 7,063
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Re: 1953 239 flat head
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I thicker oil will give you a higher reading. As long as your north of 0 on a regular flathead I wouldn't worry about it. Even 10lbs at hot idle on a flathead is good. . |
09-10-2019, 07:17 PM | #7 |
Senior Member
Join Date: Jun 2010
Location: Detroit suburb, MI
Posts: 3,712
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Re: 1953 239 flat head
I agree on the Shell Rotella 15-40. I have heard nothing but good about it for many years.
Sal |
09-11-2019, 10:33 AM | #8 |
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Join Date: May 2010
Location: Chester Vt
Posts: 8,896
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Re: 1953 239 flat head
ANY GOOD 10/30 OIL IS FINE FOR YOUR ENGINE. Most people judge the type of oil to use is determined by the oil pressure on the gauge. However flow is more important and cooling the bearing is very important. The Ford oil pump is a positive displacement unit. It sends large volumes of oil to the bearings. Any resistance to the flow increases the pressure, to a point when it contributes to the temperature of the oil and resistance to flow. The ford engineers determined that 10 lbs of oil pressure was all that's needed to protect the bearings under normal operation, with a max of 30 lbs. The pressure release valve is set at aprox 50/60 lbs. To open the relief valve creates mor temperature in the oil. With all this said, most people would rather see their pressure gauge read 50 rather than 10. I's a feel good thing.
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10-19-2019, 11:15 AM | #9 |
Junior Member
Join Date: Sep 2014
Location: West Kelowna BC
Posts: 13
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Re: 1953 239 flat head
I just read your message. Thank you for your info. I appreciate any information I can get. I’m really having a good time with this old truck. Been a bike guy most of my adult life and am new to the old truck world. Should have done it years ago. Thanks again!
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10-19-2019, 07:13 PM | #10 |
Senior Member
Join Date: Jan 2012
Location: Lyman,ME.
Posts: 2,651
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Re: 1953 239 flat head
How about some pictures of your “old truck” ?.......Mark
__________________
I'm thinkin' about crankin' My ragged ol' truck up and haulin' myself into town. Billy Joe Shaver |
10-20-2019, 10:16 PM | #11 |
Junior Member
Join Date: Sep 2014
Location: West Kelowna BC
Posts: 13
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Re: 1953 239 flat head
I’m working on a couple pics. Not very computer literate so it’s a struggle! .... Billy Joe Shaver is a god! Saw him last year at Willi Nelson’s July 4 picnic! He is a must see!!
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