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08-28-2015, 09:32 AM
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#21
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Tinkerer and Putterer
Join Date: Mar 2013
Posts: 400
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Sounds like the fuel wash down messes up my old way of doing things but I used to run an oil test every 3000 miles for 35.00 and then change the oil when the test show less than 30% of oil life remaining. The mileage you get out of a tow vehicles oil varies wildly with driving conditions and load.
AMSOIL Oil Analyzers Test Kit, Postage Pre-Paid
Yes I run Amsoil but I have run other synthetics such as Royal Purple and obil 1. Some of my vehicles have run over 30000 miles before I performed a change and some have needed a change after 6000 miles.
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08-28-2015, 12:47 PM
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#22
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Senior Member
Join Date: Jul 2009
Location: Warsaw,NC
Posts: 7,184
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Does anyone use a test kit to check your oil? I saw on a dmax forum to just change your oil filter that way you only lose a quart of oil. I use synthetic oil and I was changing around 6,000 miles but now it's closer to 10,000 miles. I now change the oil with what it says on the truck but I think I'll buy a test kit and change with what it says
Sent from my iPhone using Forest River Forums
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08-28-2015, 01:01 PM
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#23
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Ready to Go
Join Date: Aug 2014
Location: Seffner, FL
Posts: 86
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8k miles, I use to change my own, filter and oil normally cost me $52 but our local Ford shop (Gator Ford Tampa) charges $49.95.. just can't complete and it not cheap oli either.
__________________
The Lessmiller's
2001 F250 SD 7.3 Turbo
2013 Sanibel 39' 5th wheel.
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08-28-2015, 01:08 PM
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#24
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Senior Member
Join Date: Feb 2015
Location: Idaho
Posts: 279
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Good info fellas.
Thanks.
__________________
2015 nights camped (54)
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08-28-2015, 01:17 PM
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#25
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Senior Member
Join Date: May 2013
Location: Florida
Posts: 312
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Use 15 quarts of Motorcraft 15W40 and Motorcraft filter every 4,000 miles. And change Motorcraft fuel filters every other oil change. Sometimes I change the engine oil myself, but usually at the dealer as the pricing is too close to what I pay doing it myself. Always change the fuel filters myself as I can do it for about $100 less than the dealer.
__________________
2013 Flagstaff 8528IKWS, 2006 F-350 6.0L
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08-28-2015, 01:25 PM
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#26
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mikejm
Join Date: Sep 2014
Posts: 82
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Why not change filter with every oil change? If you don't aren't you just running clean oil thru a dirty oil filter?
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08-28-2015, 01:29 PM
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#27
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Left Coast
Join Date: Dec 2014
Location: vancouver,washington
Posts: 15,649
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Delo 400.....7500 miles
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08-28-2015, 01:33 PM
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#28
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Senior Member
Join Date: Jul 2015
Location: iowa
Posts: 110
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Duramax 2500 HD. Every 5000.
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08-28-2015, 01:37 PM
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#29
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Senior Member
Join Date: Sep 2011
Location: Komoka Ontario
Posts: 2,680
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I just got mine and the dealer wants to change it at 10000 KMS, (about 6250 miles) the first four are free so I don't really care right now, my last diesel back in 2006 I did when the DIC told me to and that was generally about 18000 KMS about 11250 miles.
__________________
"Well that didn't go as expected"
2015 Chev 2500HD Highcountry Duramax
Cedar Creek Silverback 33IK
Donald&Casey cairn terrier
Rest in Peace Mary my darling wife.
Scottish by birth Canadian by time.
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08-28-2015, 01:38 PM
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#30
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Senior Member
Join Date: Sep 2014
Location: Western AZ
Posts: 2,404
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Quote:
Originally Posted by mikejm
Why not change filter with every oil change? If you don't aren't you just running clean oil thru a dirty oil filter?
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I think he said the Dmax forum said "just" change the filter.Guess the thinking is it goes in the filter dirty and comes out clean so you throw away one dirty qt. of oil
I think
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08-28-2015, 01:51 PM
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#31
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Senior Member
Join Date: Apr 2015
Location: Middle GA
Posts: 1,289
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Every 5000 miles with Rotella T6.
__________________
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2016 Ram 3500 Laramie 4X4 6.7 Cummins Diesel
Never Enough Time Camping!!
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08-28-2015, 02:44 PM
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#32
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Senior Member
Join Date: Aug 2012
Posts: 129
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I used Mobil 1 synthetic oil. Change every 5k.
Fuel filter every other oil change c
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08-28-2015, 04:14 PM
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#33
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Senior Member
Join Date: Apr 2015
Location: Minnesota
Posts: 134
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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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08-28-2015, 06:29 PM
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#34
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Senior Member
Join Date: Jan 2014
Location: Morgantown, WV
Posts: 104
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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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08-28-2015, 06:47 PM
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#35
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dgibbs1955
Join Date: Jun 2015
Location: Azle, Tx
Posts: 103
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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/2020 Riverstone 39RKFB/2012 Harley Davidson Ultra Glide CVO.
Summer in Blair,Nebraska.
Winter at home in Azle, TX.
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08-28-2015, 07:19 PM
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#36
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Senior Member
Join Date: May 2013
Location: Livingston, TX.
Posts: 318
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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.
Dave
__________________
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)
Arguing with some people is like trying to smell the color 9
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08-28-2015, 07:37 PM
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#37
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Member
Join Date: Aug 2015
Location: Western Georgia
Posts: 50
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Same here...Rotella every 5k. Cheap insurance.
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08-28-2015, 08:30 PM
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#38
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Junior Member
Join Date: Sep 2013
Location: Kenosha, Wisconsin
Posts: 9
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Delvac Mobile 1 synthetic every 10,000 miles.
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08-28-2015, 08:43 PM
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#39
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Senior Member
Join Date: Oct 2010
Location: Chesapeake, Va
Posts: 938
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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
2018 F-250, 6.2L
2011 Prime Time Crusader 320RLT
"PT Crew Member Since 11/2010"
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08-28-2015, 09:06 PM
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#40
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Senior Member
Join Date: Jul 2014
Location: Arkansas
Posts: 186
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I use AmsOil 15W-40 full synthetic oil & filter. Change per the DIC.
__________________
2021 Forest River Vengeance Rouge Armored 371A13
2021 GMC Sierra/Denali 3500HD SRW
Anderson Ultimate 24k Hitch
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