My 2¢....
We Motorheads tend to obsess over oil and I don't think what kind of oil really makes that much of a difference as long as it's good quality stuff, changed regularly.
One of my oil changes I put the Royal Purple stuff; which claimed better gas mileage... that claim was bumkus. My mpg was exactly the same weeks into the new oil. I imagine for the rear angle drive it will be the same. Use good stuff and change it regularly and you'll be fine.
Yep, change it at 1500 miles, 5000 miles, then 10000 miles and you should be good for a long time. Just use any name brand/quality stuff.
I know the first number is oil "weight" right? So similar in weight, just not sure the difference between the 40 and the 250 - is that viscosity or something?
I have one and a half of left of the Royal Purple, so will probably use that and then check back and see what the consensus is! I've heard the new angle drive is a bit beefier, but just what I read. Interesting that the oil specs changed.
I know the first number is oil "weight" right? So similar in weight, just not sure the difference between the 40 and the 250 - is that viscosity or something?
The first is the cold flow rate (sorry can't remember the cold test temperature for gear oil) and the second refers to the viscosity at 210 degrees Fahrenheit.
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Changed mine at 1500 Miles and couldn't believe how clean it was. slight metal shavings on magnet but nothing like what I've seen online.
Are there any differences between the 2021 angle drive and earlier models recommending 75W-140 gear oil?
Bill
