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01-07-2016, 11:42 AM
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#15
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Aug 2014
Posts: 1,899
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Thanks Guys, Good Info.
It looks like Costco & Wallmart are about the same price for Delo.
Regards,
Dan
__________________
2014 40QBH Phaeton DP Cummins 380HP ISL, Freightliner XC, 2019 Jeep Grand Cherokee Trailhawk TOAD
Blue Ox Aventa tow bar, SMI Air Force One -Cave Creek, AZ.
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01-07-2016, 11:57 AM
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#16
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Registered User
Join Date: Sep 2014
Location: Tucson
Posts: 1,419
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There is no best oil. Your engine doesn't know or care what brand of oil you're putting in so long as it's rated for your engine.
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01-07-2016, 12:28 PM
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#17
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Senior Member
Ford Super Duty Owner Freightliner Owners Club Carolina Campers Retired Fire Service RVer's Spartan Chassis
Join Date: Feb 2012
Location: Margaritaville, SC
Posts: 556
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I may be mistaken on the oil I'll check next time I go to my shop I found synthetic Rotella at tractor supply for $14 a gallon
__________________
2008 Newmar Essex 4515
2023 Jeep Grand Cherokee Summit & 1979 Jeep CJ7
Owner: RVProPlus- NRVIA - RV/Inspection/Repair
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01-07-2016, 02:34 PM
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#18
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Senior Member
Join Date: Aug 2012
Posts: 1,580
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I use Rotella T6 synthetic oil 5W-40, because of the wide temperature range I am exposed to. My Ford manual says 10W-30 for normal use, but 15W-40 or 5W-40 if using the bio-diesel junk. Since I never know when bio might go in my tank, and considering the temperatures, 5W-40 it is.
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01-07-2016, 03:47 PM
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#19
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Senior Member
Newmar Owners Club Workhorse Chassis Owner Spartan Chassis
Join Date: May 2010
Location: McAlester Ok
Posts: 2,057
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I just changed at Speedco, A long time mechanic recommend Mobil Delvac 15w-40. My first oil change in this rig. I have two lab test from Blackstone labs, so I have a good base line. Will do another lab test in a few months to see what it reveals.
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2007 Newmar KSDP. 3912
2010 Nissan Frontier SE
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01-07-2016, 03:58 PM
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#20
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Member
Join Date: May 2013
Location: Arizona
Posts: 81
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While my 2012 Ram 3500 DRW 5th wheel hauler is not as big as some of your MH engines, the 6.7 Cummins in there gets regularly scheduled oil changes using dealer recommended Rotella synthetic. Been using synthetic since the truck was new and have no plans to change.
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Alan
2012 Ram 3500 DRW, 6.7HO
2014 Palomino Columbus 340RK
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01-07-2016, 05:06 PM
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#21
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Senior Member
Join Date: Dec 2012
Location: Full Timing
Posts: 751
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I use Delo 400 LE 15-40 in my Cummins ISL. I also do oil analysis to keep track of things.
While someone said there's no best oil, they are certainly oils you may want to stay away from. I had oil analysis done on Lucas Magnum 15-40 and it was way out of grade. It tested more like a 10-30 oil after only 6,000 miles. I found the Petroleum Quality Institute of America (PQIA) issued a warning for this oil not meeting the specifications stated on the packaging.
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Mike
2003 Alpine Coach 40MDTS - 400HP Cummins ISL
Can Am Spyder Roadster
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01-09-2016, 07:05 PM
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#22
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Aug 2014
Posts: 1,899
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Quote:
Originally Posted by Koop
I use Delo 400 LE 15-40 in my Cummins ISL. I also do oil analysis to keep track of things.
While someone said there's no best oil, they are certainly oils you may want to stay away from. I had oil analysis done on Lucas Magnum 15-40 and it was way out of grade. It tested more like a 10-30 oil after only 6,000 miles. I found the Petroleum Quality Institute of America (PQIA) issued a warning for this oil not meeting the specifications stated on the packaging.
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Thats why this forum is so valuable.
There is enough propaganda in all of the Oil and Gas commercials to make your head spin.
In the old days, I bought a specific brand of gas becasue you got a set of glasses after 4 fill-ups
Dan
__________________
2014 40QBH Phaeton DP Cummins 380HP ISL, Freightliner XC, 2019 Jeep Grand Cherokee Trailhawk TOAD
Blue Ox Aventa tow bar, SMI Air Force One -Cave Creek, AZ.
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01-09-2016, 07:11 PM
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#23
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Quote:
Originally Posted by V3600
There is no best oil. Your engine doesn't know or care what brand of oil you're putting in so long as it's rated for your engine.
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Exactly!!
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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01-10-2016, 04:52 AM
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#24
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Senior Member
Join Date: Jun 2010
Location: Upstate New York
Posts: 3,722
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I use Ford's Motorcraft semi-syn diesel oil if for no other reason then I will take the truck to Ford for that service along with their filters - I just cannot handle dumping 13 quarts of hot oil (then disposing of the waste) while lying on my back on the driveway. If I was to do it myself, I still would probably use the Motorcraft or, if not available, then the Rotella which I've used in my little diesel tractor for 25 or so years. Whichever you choose are probably all pretty good these day as long as the spec is met. Lucas products - any - mentioned above will never EVER be used in any of my vehicles. It, IMHO, is overpriced, over hyped 'snake oil'
__________________
Dave W
2011 Ford F250 6.7 Lariat CCLB, Gone but not forgotten
2014 Montana High Country 343RL (sold it!)
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