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Old 08-28-2015, 01:51 PM   #31
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Location: Middle GA
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Every 5000 miles with Rotella T6.

Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat SuperCrew 4X4 6.4 Diesel
Never Enough Time Camping!!
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Old 08-28-2015, 02:44 PM   #32
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I used Mobil 1 synthetic oil. Change every 5k.
Fuel filter every other oil change c

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Old 08-28-2015, 04:14 PM   #33
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Location: Minnesota
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I use Mobil Delvac 1300 Super, 15-40. My owners manual sais to change oil every 7500 miles. Thats what I do. In the winter months I use 10-30 up in Minnesota. I change my own and do most of my own maintenance.
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Old 08-28-2015, 06:29 PM   #34
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Location: Morgantown, WV
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Onboard Computerized Oil Monitor

It depends on the type of oil used and the amount of towing you are doing. Synthetic oil interval recommended by Ford is 7,500 miles and 5,000 miles for regular oil under normal usage. They also state that the onboard computer monitoring system is the best source to rely upon and it will automatically adjust that interval based on the oil itself. I'm not sure how accurate all of that is, but if it validates the warranty, that is what counts in my opinion
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Old 08-28-2015, 06:47 PM   #35
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Location: Azle, Tx
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I use Royal Purple and have it changed every 10K, and the fuel filter about every 7.5K unfortunately. I can always tell when it needs changing because my mpg really drops. I have recently had the TV "decluttered", chipped and tuned (5 different programs), so I am anxious to see how this mileage will differ when the 7.5K comes back around again. Mine gets driven all around, so I really notice when it heads south.

2012 Dodge 3500 Cummins Crew Cab 4X4, "Decluttered" and Tuned/2013 Forrest River Viper XLR 390V10 Toy Hauler/2012 Harley Davidson Ultra Glide CVO.
Full time RVer.
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Old 08-28-2015, 07:19 PM   #36
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Location: Livingston, TX.
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Mobil Delvac 1300 15w-40. 10 gallons with 3 filters @ 20,000 miles. Change air filters and fuel filter at same time. No I don't do my own work.

2014 Sandpiper 35ROK
2004 Volvo VNL64T 630 left tandem
D-12 435 HP 740 CU
Western Golf and Country Cart (custom body, EZ-GO frame)
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Old 08-28-2015, 07:37 PM   #37
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Location: kansas city
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Same here...Rotella every 5k. Cheap insurance.
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Old 08-28-2015, 08:30 PM   #38
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Delvac Mobile 1 synthetic every 10,000 miles.
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Old 08-28-2015, 08:43 PM   #39
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Location: Chesapeake, Va
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10k(this can take up to a year for me). Truck tows about 50% of the time. Rotella, delo, delvac, which ever is on sale.

Jason and Billie
2005 Dodge Ram 2500, 4X4, QC/SB 5.9L Cummins
15k non-sliding Hidden Hitch (they lied, it's not hidden at all)
2011 Prime Time Crusader 320RLT
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Old 08-28-2015, 09:06 PM   #40
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Location: Arkansas
Posts: 92
I use AmsOil 15W-40 full synthetic oil & filter. Change per the DIC.

2012 Forest River Wildcat 313RE
2012 GMC Sierra 2500 HD Duramax
Demco Hijacker 18K Autoslide Hitch
BAK Roll-X Tonneau Cover
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diesel, truck

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