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QCIM38A1 Member
Joined: Apr 01, 2014 Posts: 25 Location: Queen Charlotte Islands, Canada
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Posted: Tue Apr 29, 2014 8:46 pm Post subject: 15W40 in F134 Engine? |
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What do you guys think of using 15W40 in an old F134? I ran nothing but Castrol 15W40 in my M-37CDN (251 L6) for almost 20 years, and it is still going strong. I wonder if anyone has tried it in the Jeep engine? With the zinc being removed from most other oils now, I was thinking 15W40 might be the way to go. |
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oilleaker1 Member
Joined: May 14, 2009 Posts: 972 Location: South Dakota
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Posted: Wed Apr 30, 2014 5:14 am Post subject: |
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I use 15-40 Rotella oil. Love it. John |
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cabinfever Member
Joined: May 14, 2013 Posts: 201 Location: Between Crosslake and Emily, Minnesota
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Posted: Wed Apr 30, 2014 12:15 pm Post subject: |
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I also am using Rotella 15W-40 along with 4oz of ZDDPlus. The ZDDPlus is supposed to increase engine oil concentrations of zinc and phosphorus to the levels needed by older engines especially those with flat tappets. _________________ Steve Stark - 1955 M38A1 MD #85388
Member - MVPA #35153
Member - Red Bull Historic Military Vehicle Association |
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artificer Member
Joined: Feb 16, 2007 Posts: 206 Location: Gold Coast Australia
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Posted: Wed Apr 30, 2014 2:12 pm Post subject: |
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Shell Rotella is very good I have always used
It is available @ Walmart.
A high detergent oil, it will keep good clean engines clean & free from internal sludge & deposits.
Not sure I would be changing to this oil in a very old, tired engine though. _________________ John GIBBINS
ASE Master Medium/Heavy Truck & Auto Technician 2002 USA
Licensed Motor Mechanic NSW # MVIC 49593 Current
YOU CAN'T TROUBLESHOOT WHAT YOU DON'T UNDERSTAND |
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QCIM38A1 Member
Joined: Apr 01, 2014 Posts: 25 Location: Queen Charlotte Islands, Canada
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Posted: Wed Apr 30, 2014 2:48 pm Post subject: |
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This engine is pretty good, doesn't smoke or anything and has lots of pep. One thing I used to do with my M-37, was add a quart of 2 cycle oil to every full tank of gas. It ran better on that than on straight gas. I might do the same with the M-38A1, but not as much oil. I never had any issues with fouled plugs or anything. |
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oilleaker1 Member
Joined: May 14, 2009 Posts: 972 Location: South Dakota
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Posted: Wed Apr 30, 2014 4:32 pm Post subject: |
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It's a good idea to pull the pan and side cover and clean up the old deposits. The higher detergent oil could unleash a load of crap. Once those items are cleaned, you won't have any problems. The pickup screen should also get cleaned up. John |
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Bearbait Member
Joined: Aug 24, 2013 Posts: 19 Location: Saskatchewan, Canada
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Posted: Wed Apr 30, 2014 8:14 pm Post subject: 15w40 oil |
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My M38A1 was used by the Canadian military, and I assume they used 15W40 all through its service life as"15w40 engine oil" is stencilled onto the inside of the hood in the engine compartment. Also I have been running 15W40 since I got it, I have great oil pressure, and the engine runs quietly. _________________ Brad Young
Expensive habits:
1971 M38A1
1967 Mercury steps side short box
1978 Porsche 924 |
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reddog Member
Joined: Aug 31, 2006 Posts: 56 Location: Port Coquitlam BC Canada
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Posted: Wed Apr 30, 2014 8:42 pm Post subject: |
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I use Petro Canada's 15/40 with Duron you can get it at Petro Canada's truck stops. They spent a ton of money developing it for their equipment up north it's a bit more money but this stuff does not break down. All the truckers up here swear by it. I have been running it in all my equipment for a few years now and it seems to stop engines from wearing out. |
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QCIM38A1 Member
Joined: Apr 01, 2014 Posts: 25 Location: Queen Charlotte Islands, Canada
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Posted: Wed Apr 30, 2014 11:46 pm Post subject: |
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That settles it, 15W40 it is! By the looks of things, it has been running Chevron 15W40 since being rebuilt. Just found a piece of paper in the glove box today with that info on it. |
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baios Member
Joined: Jul 29, 2011 Posts: 159 Location: LAMIA GREECE
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Posted: Fri May 02, 2014 12:10 am Post subject: |
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is this what U are talking???
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artificer Member
Joined: Feb 16, 2007 Posts: 206 Location: Gold Coast Australia
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Posted: Fri May 02, 2014 11:37 am Post subject: |
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That is what is listed on the Walmart website as what the latest version container looks like. _________________ John GIBBINS
ASE Master Medium/Heavy Truck & Auto Technician 2002 USA
Licensed Motor Mechanic NSW # MVIC 49593 Current
YOU CAN'T TROUBLESHOOT WHAT YOU DON'T UNDERSTAND |
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Hawkshadow Member
Joined: Oct 10, 2012 Posts: 310 Location: Toronto, Ontario, Canada
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Posted: Mon May 05, 2014 9:08 pm Post subject: |
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For those in Canada I can confirm that both princess auto and Canadian Tire also carry this oil. Canadian tire also carries straight 40W in large quantities (confirmed at the Stoney Creek location this past Saturday) _________________ Jordan
M38 CDN
52-30718 |
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QCIM38A1 Member
Joined: Apr 01, 2014 Posts: 25 Location: Queen Charlotte Islands, Canada
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Posted: Mon May 05, 2014 9:54 pm Post subject: |
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Good to know! I will see if someone can get me some when they go to the mainland. Thanks! |
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