Redline 80w/140 diff oil 40,646 miles

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Steve S

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Al .1
chrom.2
iron.986
copper.1
lead .1
tin .0
moly.1
nickel.6
manganese.10
silver .0
titanium .11
potassium.4
boron .246
silicon .80
sodium .9
calcium .4
magnesium .3
phosphorus .2916
zinc.38
barium.1
sus visc .101.2
flashpoint*f 385
insol .0.4

this is Redline 75w/140from a 2002 Ford powerstroke 2wd with a posi rear end 64,000 miles on the unit 40,464 miles on the oil. Blackstone labs
 
Seems that we have seen a number of redline results that have been less than savory. Unsure of what it means, given that its basestock may be cleaning up old junk, it is diff oil and so there isnt such a real database, and perhaps it is more sensitive to loading than even engine oil...

JMH
 
This was the third oil change, The first was at around 1,000 miles the second oil change was around 20,000 miles, all with Redline oil of recommended viscosity .
 
why does blackstone still use SUS everyone in the world reports in cSt. So I guess 101 SUS is about 23 cSt @ 100??? a light 140
 
Redline usually has Si in a few formulas but 80 seems a little high. Might be normal though. Dirt maybe?
 
I'm really surprised at these values... Where did the "friction modifiers" go?

For clarification; Is this Red Line's 80w140 or the 75w140?
 
switch to M1 in 75w140 and let us know.. we dont have enough differetial gear oil uoa's to say squat.. i may send my M1 75w90 off when i change over at 30k miles
 
Powerstroke? is this vehicle worked? any mods?
Any magnet pictures?

Gear oil, IMO, should always be changed in 30k intervals. More so if vehicle is used for work.

Iron is excessive for mileage. Redline sheared to the middle of a 110wt, a drop of ~7cst if you looked at the datasheet.

If you run the Redline again, UOA it 30k. If it looks this bad again, find another brand of gear oil.

I'll assume that the scary high Fe is caused by a weak magnet, if equipped. So, buy yourself a nice aftermarket rearend cover with magnetic drainplug/dipstick. The increase in fluid capacity, improved fluid cooling, and a magnet that'll grab several hundred PPM of Fe, will make the UOA more acceptable.
 
I have 80w/140 Redline it it now I will uoa at 20,000 miles or less to see how it is doing and I will try Delo ESI or Schaeffers oil if I can get it in Qts. There did not seem to more metal than what I would expect to see on the magnet ,odd though the magnet is on the fill plug . It is a bone stock Powerstroke .My wifes truck it is driven easy and not abused.
 
A fill plug magnet, gravity, and hoping for good splash/flow to the magnet location, just doesn't jive with me as an effective way to capture Fe wear.

Easy/stock/wifey would only make me worry more. I'd still expect less Fe.

The only plus is that the magnet 'looked' ok.

Compare the Redline 75w140 and 80w140 spec sheet. Wondering if the 75w140 would be a better choice: http://www.redlineoil.com/pdf/5.pdf

You can't go wrong with the Delo or Schaeffers either.
 
It's rare we ever see a good Redline uoa whether that be motor oil or gear oils.
21.gif
 
Mobil 1 gear oils are very good. Came in 2nd on the Amsoil White Paper test.
 
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