rear end fluid

My mistake, I should not speed read at 5am.... edited.

 

Totally would not use used motor oil or gear lube in my $1,500+ chainsaw. I use quality (bought by the gallon) of bar oil.

 

I use the new Stith bio oil.

 

Oh the Drama !

...That is complete balony......... Obviously you dont know what you are talking about and lack actual saw use experience..... I live in the PNW, know many many loggers and forester, and I run a chain saw everyday.
Your bar and chains are wearing out because you are using junk bar oil and your oiler ports are probably clogged with that junk..

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@GSP7 , Show me one saw manual within the last 40yrs that recommends the use of used motor oil to be used in there saws over bar oil? You're also putting a used oil into the environment that wasn't designed for that. I've worked with saw distributors and saw chainsaws that had run used motor oil through them! Gear oil and even used motor oil contains metals that are toxic to wildlife! If caught using in the way that you are, you could be fined and or jail time! Like I said your choice, your equipment! Doesn't make it the correct thing to be done or even the healthest thing for yourself and the environment, FULL STOP!

 

A good sized tree, I usually go through almost a half gallon of bar oil from the debranching process to the actual sawing of the main trunk and limbs. That's a lot of oil going into the environment if it's motor oil.

I am thinking of changing to the bio-degradable bar and chain oils, more so when do trimming on my fruit trees.

I do have my oiler putting slightly more oil out than most. But it seems to keep the bar and chains very happy. Especially when the bars and the chains cost a lot more than the oil.

 

Stilh Bio plus bar is nice in many ways. Give it a try I think you will like it . A bit expensive

 

I've used Amsoil 75-90 Severe Gear 75-90 every 50K since new. It looks like new. Still amber translucent. Same deal with 75-90 MTG manual trans fluid.

 

Rear differential level?? How far below fill hole should it be?
Thanks
Craig

 

1/4" ±1/4", so I just go until it leaks out the fill hole.

 

That's what I do too, that keeps the wheel bearings nicely in the oiled.

 

Thanks guys for your reply's. Had my S&B 60gal fuel tank installed yesterday at my Diesel Guys place and I checked it. It was a inch below the hole. So thinking 3/4" low. Truck just rolled a 1000 miles. I will take care of this today. I will be getting the 5th wheel out of storage this evening..

 

I just dumped mine before I even checked it. Went to AmsOil Severe Gear before I started doing any real towing. Now at 33k so going to dump and replace again this fall when I do my annual service ( AISIN/Engine/T-case/fuel filters )

 

Every diff and T case I have serviced I fill to when it starts coming out.

 

And.....this brings me to my question - 75-85W oil is not readily available - have to order from AMAZON. Is using 75-90W or higher okay for the Dana 60 or 80?

 

75w-90 is what was recommended for the D60 and D80, aside from heavy towing which called for 75w-140.

Dana axles haven't been used since 2002. Dodge switched to AAM with the 3rd gen and they are still used. The front is an AAM 9.25 and the rear can be an AAM 10.5, 11.5, 11.8, or 12.0. The 2018 in your sig will be a 11.5 if it's a SRW and an 11.8 if it's a DRW.

Long story long, 75w-90 is just fine and what I've used in my '05, '18, and '22. 75w-85 was likely a small attempt at improved fuel economy.

 

Perfect - thanks for the clarification with the axle types....I'm not current on any of that. I wouldn't think that the 90W and up would be bad for the axle. Thanks for the quick reply....adding gear lube to the front differential this morning as it was milky when purchased used 9 months ago.

 

I run 75-90 SG in the front axle and 75-110 SG in the rear on my 15 DRW. Heavier in rear because 1/2 my miles are towing 35k combined plus. I changed the front early on. Not sure if I will do a second change, 4wd has barely been engaged.

 

You may not have used it much, but the R&P is always spinning. Amsoil rates the fluid for 100K miles normal use and I’ve gone that far with it on the wife’s 4Runner but probably wouldn’t go past that even in the front axle.