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Off the shelf at my local Deere dealership, and as I stated it's printed in my owners manual crica 1992.

Originally Posted by Linctex Originally Posted by Jetronic There was a user here who used JD plus 50 oil in his engine. Not sure if it was 0w-40 but possibly. Excellent UOA anyway, some of the best I've ever seen. Back in the 1990's - John Deere 15W-40 was Shell Rotella 15W-40. Exact same...

It is a 13 quart sump, maybe that's what was intended

Originally Posted by LubricatusObsess Ford recently published an oil chart for 2020. Up to a week or so a go, they still had the 2019 chart posted. I didn't look for differences between the two. I think this new chart is much more difficult to read. I posted the 2019 chart in other thread(s)...

Originally Posted by LubricatusObsess I do not want someone to agree - look at the OP. I want someone who knows to assess the better of the 3 oils presented. Instead, I got not one response, I got other recommendations. As I said, if one doesn't wish to reply to my ask, don't respond. Yet you...

Once more, a 10w-30 is what you want to use in this engine, there isn't any need for a synthetic. I have over 350,000 mi. In a 6.0, and UOA data from every OC that we're run out to 7,500 mi. Intervals to prove my point. There were multiple times cold soak starts happened at -40, no issues, no...

I ran a couple 6.0's for a combined 350,000 mi. And had the best UOA,s with 10w-30 John Deere Plus 50, which was ran exclusively in the ,07 6.0 after 75,000 mi. My climate is similar to yours, I,ve had to cold start at -40 and ran loaded at +90f through the summers without issue. The 6.0 prefers...

With the 6.7 having an IOLM it has been proven time and again through UOA that 0% IOLM is conservative. Just relax and drive.

My wife drives an F150 with the 3.0 PowerStroke diesel which does have the auto start/stop. The glow plugs only cycle during cold-starts, so that isn't an issue. The battery is an AGM, so battery is sized for application, the starter and other engine components are up for debate as far as...

My experience with diesel and 10w-30 can be traced back to my ‘07 6.0 PowerStroke. The rage at the time was 5w-40, I had made 3 consecutive runs with the Shell variant available at the time. Three consecutive UOA's showed higher wear numbers vs. the previously used 15w-40. I then went to...

My point is you can run the IOLM to 0% with a conventional 10w-30 and still have plenty of reserve. Most posts I have read here and elsewhere owners refuse to trust the IOLM and dump early at some arbitrary mileage, run a syn "because its better". Show me evidence as I'm a realist.

Originally Posted by Gokhan Originally Posted by tundraotto Severe duty with a snot plow is not because of lack of cooling - it's because of the high load on the engine pushing (normally very heavy) snow, continuously. It's true that you need a thicker oil for low-RPM/high-load operations to...

There's no difference between the viscosity's listed in OCI, just follow the IOLM. I doubt your locale has much if any bio blend fuel this time of the year as its the first to gel.

Originally Posted by AcuraMDX2014 Low temperatures in metro Denver tonight are to be 3F, which is barely in the 0F+ range for "Normal Usage" 10W30. I called dealer service department that I purchased the 2019 F-350 diesel from and left a message asking what comes from factory. If they don't know...

My '15 6.7 currently has 125,000 mi. and has had nothing but 10w-30 JD Plus 50 II since factory fill.

The issue with the OP truck seems to be GM related, minus the fuel gel. Cold weather testing should have unmasked these issues that they experienced. I have a friend (retired) who was a testing engineer for Ford for many years. I've heard many cold & warm weather testing scenarios that they...

Originally Posted by hallstevenson Where are some UOAs from engines that reuse the oil filter without draining it vs ones that have drained them ? So many think that UOAs are the "gospel" so why not use this as proof. FWIW, Honda says to replace the filter every other oil change and makes no...

Ford uses an electric heater within the DEF tank on the 6,7

HyGard/HyGard Low Vis is one of the best fluids on the planet for its intended use, and its competitively priced. No need to re-invent the wheel with this fluid choice.

No DEF heat when truck isn't running. My ‘15 is currently at 125,000 mi., trouble-free.