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- Feb 19, 2023
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Mega 75w90 testing thread!
- Thread starter SubieRubyRoo
- Start date
I run 75W-140 in my F150 and F350 and the Toyota Tacoma ,,, the 75W-140 in the Toyota is over kill but then over kill is underestimated.
Not sure how to really interpret the data. Can one put these in order, if possible?
You could, but your interpretation will likely be different than someone else’s, and because of different reasons. I should have the pour point and Brookfield data for the 6 newer oils soon.
But, back to the comparisons: there are differences especially in really cold temperatures, but unless you live in those temps there’s no point in prioritizing that. On the wear tests, if you never tow there are some really good low-load wear results; if you tow heavy those choices may change slightly.
As @dnewton3 has referenced before, a shortcut to finding a good gear oil without this data is to simply pick one off the SAE J2360 QPL list.
Thanks for the data! I currently have the amsoil svg 75w-90 in my e90 front and rear diffs. Maybe I'll try the HPL in my F36.
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Was the Valvoline listed on here the white bottle/blue label (conventional?) High Performance 75W-90 or the SynPower 75W-90. Looking at their packaging, both contain a limited slip additive.
If we need some results on SynPower, just bought 12qts to do some diff series on and could send in some to Blackstone for a VOA. Also have some Amalie 75W-90 (w/o LS additive) that I could send.
...had about a 1/4 of a quart of John Deere GL5 75W-90 that I could've sent in but I mixed it with 1/4 quart of the leftover Amalie I had left for the 54D mower gearbox (whoops!).
If we need some results on SynPower, just bought 12qts to do some diff series on and could send in some to Blackstone for a VOA. Also have some Amalie 75W-90 (w/o LS additive) that I could send.
...had about a 1/4 of a quart of John Deere GL5 75W-90 that I could've sent in but I mixed it with 1/4 quart of the leftover Amalie I had left for the 54D mower gearbox (whoops!).
Synpower
Great thread! Thanks
Will be ordering Severe Gear for my Outback soon.
Will be ordering Severe Gear for my Outback soon.
Still tuned ...
Still waiting on lab. As posted earlier, I asked a big favor from the lab for all this testing, so we’re at their mercy (grace?) awaiting results. Considering each oil had testing that amounted to at least 75x what each quart cost, a little wait isn’t that bad. In reality, there’s already plenty of data about the 11 gear oils in this thread for the 99% of people who live outside the Arctic Cirlce to make their decision.
Trust me, the board will get the data posted within minutes of when I receive it. I’m as eager to see the results as you are. Thanks for being patient
Trying to apply this info to my current situation.
Money has gotten tight, and rear diff on my Transit has gotten leaky. Only 82000 mi. In a semi-perfect world I would install an Eaton TruTrac Torsen rear diff, and use appropriate fluid ( no friction modifier, synthetic NOT preferred???). But must fix the leak, and replace the factory fill (82k), no Torsen this year.
Here are factors I considering.
Ford spec is75w85
Tall roof Transit van, near 10 ft tall, though only 7500 Gross weight (typical), but lots of aero drag
Most mileage is highway, but considerable off-road (10-15%)
Does anyone know how different Mobil 1 is from Mobil Delvac 1?
I may have to use a fluid a local shop will accept (or source). Lots of Valvoline lovers here, but I’m not…though for gear oil, not a hater; though not overly impressed with its performance in this shootout.
I really liked the Amsoil SvG, but considering I might be looking for only 12500-25000 mi solution before swap to Torsen, maybe it is overkill. As much as I like HPL, I can get Amsoil for less (though not near as cheap as Delvac),so for the moment will rule out HPL (at Torsen time, will reconsider).
It pisses me off that a year ago I would have done this myself, now, “old-man-back” makes me a target of shops (not just dealerstealers).
Money has gotten tight, and rear diff on my Transit has gotten leaky. Only 82000 mi. In a semi-perfect world I would install an Eaton TruTrac Torsen rear diff, and use appropriate fluid ( no friction modifier, synthetic NOT preferred???). But must fix the leak, and replace the factory fill (82k), no Torsen this year.
Here are factors I considering.
Ford spec is75w85
Tall roof Transit van, near 10 ft tall, though only 7500 Gross weight (typical), but lots of aero drag
Most mileage is highway, but considerable off-road (10-15%)
Does anyone know how different Mobil 1 is from Mobil Delvac 1?
I may have to use a fluid a local shop will accept (or source). Lots of Valvoline lovers here, but I’m not…though for gear oil, not a hater; though not overly impressed with its performance in this shootout.
I really liked the Amsoil SvG, but considering I might be looking for only 12500-25000 mi solution before swap to Torsen, maybe it is overkill. As much as I like HPL, I can get Amsoil for less (though not near as cheap as Delvac),so for the moment will rule out HPL (at Torsen time, will reconsider).
It pisses me off that a year ago I would have done this myself, now, “old-man-back” makes me a target of shops (not just dealerstealers).
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When you do the Torsen, you could capture the Amsoil in a clean (new?) container and reuse it?