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1967 John Deere 6-404, Rotella Triple 15W-40, ~20 hrs/3yrs OCI #5317543 01/09/20 09:21 AM
Joined: Dec 2018
Posts: 37
North_Maine Offline OP
OP Offline
Joined: Dec 2018
Posts: 37
Analysis done by Caterpillar SOS.

The '67 John Deere is a 644a Payloader. The UOA is bad... really bad. I'm not very surprised but there are a lot of things going on with that machine. Suffice to say I'll be resampling after this new sump full of oil gets a few hours on it to see where things stand. The oil I pulled was over 3 years old and the machine had sat unused for 2 of those years due to lack of time/need to replace the turbo. There is some running time with the failed/failing turbo. Since purchased we've only put on maybe 100 hours... and based on the fact that it needs ether to start anytime the block is below 90 degrees F we know that it needs a rebuild desperately. The most surprising and concerning part I saw was the fuel dilution. For an old-fashioned pencil injector engine that's a SERIOUS injector issue or the injector pump seal is failed. Oil is 2014/15 Rotella Triple Protection 15W-40. It was drained when sampled and refilled with NAPA Premium Heavy Duty Diesel. Filters are Deere Filters and they are not very good... OEM spec for this application is 20 micron @ 50% efficiency.

I've posted both this UOA and the one for my 2017 RAM Cummins in a separate thread. These are my first UOA experiences and I appreciate your feedback.

[Linked Image]
[Linked Image]

2017 Ram 2500 6.7 Cummins
2002 Ram 2500 24V Cummins
2018 Ford Expedition
1966 John Deere 3020
1967 John Deere 644a
Kubota G5600 Diesel
Belarus T40
Re: 1967 John Deere 6-404, Rotella Triple 15W-40, ~20 hrs/3yrs OCI [Re: North_Maine] #5317731 01/09/20 01:39 PM
Joined: Mar 2008
Posts: 6,612
bubbatime Offline
Joined: Mar 2008
Posts: 6,612
13% fuel and iron at 385. Wow, thats BAD.

2019 Honda CRV 1.5T dealer bulk
2017 Chrysler Pacifica SuperTech synthetic 5W20
2013 Yamaha XT250 Valvoline motorcycle 10W40
2006 GMC Sierra SuperTech high mileage 5W30

Re: 1967 John Deere 6-404, Rotella Triple 15W-40, ~20 hrs/3yrs OCI [Re: North_Maine] #5338495 02/01/20 08:41 PM
Joined: Sep 2005
Posts: 14,913
addyguy Offline
Joined: Sep 2005
Posts: 14,913
A lot of that Fe is just plain rust from sitting for 2 years. Given the problems it has had, these results aren't that bad - Fe is the only thing off the charts.

2010 Kia Soul 2U - 2.0L I-4, auto; 152k miles.
Castrol Edge (black bottle) 5W-30; Fram TG 9688.

2009 Pontiac G5 - 2.2 I-4, auto, 121k miles.
Oil/filter TBD
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