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08-06-2018, 09:35 PM
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#71
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Junior Member
Join Date: Aug 2018
Location: Dardanelle, AR USA
Posts: 10
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Rotella T4 15W-40 5000 mile change intervals, no oil use, 189,000 2003 LB7 Chevrolet 2500HD SRW 4D. Pulls 6500lb toy hauler + 2 Motorcycle or 1990 HR ALUMA-LITE XL 5th Wheel @ 9300 lbs loaded.
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Michael and Melissa Lynch
'03 Chevy 2500HD/DURAMAX-ALLISON
'90 HR ALUMA-LITE XL 5th Whl
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08-15-2018, 10:45 AM
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#72
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Member
Join Date: Jul 2018
Posts: 51
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Mobil One full synthetic and Wix filter.
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08-23-2018, 09:04 PM
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#73
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Junior Member
Join Date: Jun 2017
Posts: 10
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2013 2500 with 202k. Pulls 5th wheel to campground and takes me to work. Runs all day every day. Rotella T with Wix, change on DIC. Allison too. Burns nothing between changes. Great truck but sold it. Afraid of costly repairs overdue.
Bought 18 L5P @ 445 HP. Will run same oil and filters.
Oh yeah, not happy with new one at all.
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08-23-2018, 09:11 PM
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#74
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Registered User
Join Date: Sep 2014
Location: Tucson
Posts: 1,419
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I use diesel oil in my Duramax. I don't care which diesel oil, they're all the same, whichever is on sale.
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08-24-2018, 10:50 PM
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#75
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Senior Member
Join Date: Feb 2014
Location: Brighton, CO
Posts: 187
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Quote:
Originally Posted by Mobile scout
2013 2500 with 202k. Pulls 5th wheel to campground and takes me to work. Runs all day every day. Rotella T with Wix, change on DIC. Allison too. Burns nothing between changes. Great truck but sold it. Afraid of costly repairs overdue.
Bought 18 L5P @ 445 HP. Will run same oil and filters.
Oh yeah, not happy with new one at all.
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What don't you like about the L5P? Looking at one and thinking of trading my 14 LML?
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08-25-2018, 06:29 PM
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#76
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Senior Member
Join Date: Oct 2010
Location: Western New York (summer) Sebring FL (winter)
Posts: 435
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I traded in an '11 Dually for an '18 Dually and couldn't be happier, plus the extra Ponies help pulling heavy.
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2018 Silverado 3500HD High Country Dually 4x4 Duramax/Allison, 2016 Redwood 39MB, Disc Brakes, Mor/ryde IS, Sailun 17.5" H tires, 5.5K Onan, Dual ACs, auto level, auto sat dish, stacked washer/dryer, residential fridge, King sleep number. Michelle & Ann
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08-26-2018, 08:42 AM
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#77
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Junior Member
Join Date: Jun 2017
Posts: 10
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First 3000 miles I've experienced poor fuel mileage and performance ( vs LML ) Also had some technology glitches like flickering dash lights, uncooperative radio and trans felt like it didnt disengage at a stop.
I dont see this one giving me the same trouble free miles the LML did.
Note: watch out for trucks built before 2/18. Trans cooler line is rubbing on right frame horn. Not under warranty either. Remove grill and inspect. If problem the cut hose and zip tie section around hose. Reinspect annually.
Note: L5P emission equipment warranty is 50k. Not 100 k like drivetrain. You also have to add high idle to software and can add manual regen if you want. ( commercial/ fleet only )
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10-07-2018, 10:20 AM
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#78
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Junior Member
Join Date: Feb 2015
Location: Oshawa Ontario Canada
Posts: 29
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what oil do you use
have a 2007 3500 lbz with 129000 klm have used Valvoline premium blue and a qt of lucas every 8 months. no problems no oil burn good power dedicated to rv towing.
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10-07-2018, 11:10 AM
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#79
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Junior Member
Join Date: Aug 2018
Posts: 11
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05 LLY with 86,xxx
Use mobile 1 filter and Chevron Delo 400 @ 5K mile intervals.
I also run the Delo in the 82 FJ40 land cruiser 2F engine.
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10-12-2018, 07:15 PM
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#80
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Senior Member
Join Date: Sep 2018
Location: Headed North to CLE
Posts: 1,053
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Either Rotella T6 or Mobil 1 Delvac Syn. 5w40 with a Baldwin B1441 filter.
Changes between 6,000 and 7,000 miles with Blackstone Labs oil sampling.
77,000 trouble free miles.
__________________
2015 Silverado 3500HD CC DRW Duramax
2006 Hitchhiker Champagne
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11-02-2018, 11:02 AM
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#81
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Junior Member
Join Date: Mar 2015
Posts: 1
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I use Amzoil 20-40 synthetic. Chang at 10,000mi.
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11-14-2018, 07:43 PM
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#82
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Junior Member
Join Date: Sep 2018
Posts: 22
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Quote:
Originally Posted by carl.swoyer
Try using Lucas fuel additive. I get 18/19 city 20/22 highway 05 lly duramax Allison crew cab long bed Lt Silverado 2005. I get10.5 to 11.8 towing a 40 foot Landmark Rushmore fifth wheel
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Wow that's great milage! Any tuner or deletes?
I just bought a new to me 2012 drw and I'm averaging 13.5 and 10.5 towing 15k RV.
It's in the shop now getting deleted and a tow tune. 124 k miles
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11-14-2018, 08:07 PM
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#83
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Registered User
Join Date: Sep 2014
Location: Tucson
Posts: 1,419
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I run diesel oil in my duramax. It doesn't seem to care the brand or if its synthetic or not.
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