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Cat 3126 Oil Recommendations
10-14-2010, 08:27 PM
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#1
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Junior Member
Join Date: Oct 2010
Posts: 5
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I have a Cat 3126 in my motorhome. Is Delo 400 10W-40 sufficient for this engine? It appears is meets Cat's specs...but I am looking for some input or other suggestions.
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10-15-2010, 06:07 AM
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#2
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Senior Member
Join Date: Nov 2009
Posts: 518
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94-Newmar Kountry Star 40-WDSKCADP
Spartan/Cummins 8.3C-300/Allison 3060
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10-15-2010, 07:28 AM
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#3
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Senior Member
Join Date: Sep 2010
Posts: 288
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Quote:
Originally Posted by alteredloc
I have a Cat 3126 in my motorhome. Is Delo 400 10W-40 sufficient for this engine? It appears is meets Cat's specs...but I am looking for some input or other suggestions.
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I have been using Shell Rotella 15W-40. Readily available at Sam's Club, Wal Mart, Pep Boys etc. it is a premium Diesel Oil at a reasonable price. Her's some info!
Shell Rotella T - Wikipedia, the free encyclopedia
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bob
2001.5 Fleetwood Discovery 37U 330HP Cat
Toad-2008 Yamaha Royal Star Tour Delux
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11-07-2010, 03:28 AM
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#4
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Senior Member
Join Date: Jul 2003
Location: Seaford, VA
Posts: 1,442
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I too like the shell rotella T...Seems to be a lot cleaner when checking the dipstick..Be Safe
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Happy Trails! ICHN2GO, Seaford VA,
Winnebago 05 Journey 39K
04 Vue Toad
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11-07-2010, 06:50 PM
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#5
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Sep 2008
Location: Shadow Hills,CA 91040
Posts: 1,942
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Shell Rotella 15-40 and nothing else.
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04 Itasca, Meridian 34H, 330 Cat/2003 CR V Toad
1933 Ford 3 Window,as seen in Bye Bye Birdie
Pvt. E1 Retired, Shadow Hills,Ca.
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11-07-2010, 07:30 PM
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#6
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Senior Member
National RV Owners Club Freightliner Owners Club
Join Date: Oct 2009
Posts: 1,560
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Quote:
Originally Posted by bob109
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Yep!
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2001 National Tradewinds 7370 300 Cat
2011 Jeep Wrangler Unlimited Sport
Officially fulltiming. The Journey Begins 
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11-07-2010, 07:59 PM
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#7
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Senior Member
Join Date: Aug 2006
Posts: 799
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Shell Rotella T Triple Protection 15W40 in both the engine and generator. I buy it at Wakmart.
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11-07-2010, 08:07 PM
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#8
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Senior Member
Join Date: Oct 2008
Location: Marshfield, WI
Posts: 398
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We have 115,000 miles on our rig and since we've owned it, have used nothing but Shell Rotella. Oil analysis continue to show no problems.
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Denny, Connie & Shadow (former barn cat made good)
2000 Itasca Horizon, Cat 3126B, Freightliner Chassis
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11-07-2010, 09:58 PM
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#9
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Junior Member
Country Coach Owners Club
Join Date: Oct 2010
Posts: 10
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just bought a 1992 affinity cc and has 88,000 miles on it and those that have owned it before me have put mobile 1 in it. Don't know if this is good or bad. I will have it checked on my next oil change.
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11-23-2010, 11:40 AM
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#10
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Junior Member
Join Date: Oct 2010
Posts: 3
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I have a 2002 Tiffin with a 3126 Cat in it. After buying it last Nov. I changed all of the fluids and put in 15-40. After 4,500 miles this spring, I was having a miss in the engine under load after it warmed up. I had a mechanic tell me that it was a case of the oil setting in the engine stored in a WI winter, or the secondary oil pump that runs the injectors is bad to the tune of $1,600 installed. He changed the oil, put in 15-40 and down the interstate we went without any problems. After about 4,000 miles it happened again. I pulled into a Cat dealer and he told me I was running the wrong oil. He told me the 3126 Cat with the "oil rail" injector system recommends that you use 10W30 in temps between -4F and 104F. They changed the oil as a test with Cat 10W30. I currently have about 5,000 miles on and I am headed to Texas next week with hopes of no issues. I am in contact with the Cat dealer with updates as he is the first mechanic to say anything about this.
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11-25-2010, 04:00 PM
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#11
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Senior Member
Winnebago Owners Club
Join Date: Aug 2010
Posts: 117
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shell rotella t 15w40
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boyce & lisa , 06 meridian 39k, 06 jeep unltd
aventa lx tow
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