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Old 08-14-2017, 03:32 PM   #1
TorchMach1
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Question Valvoline synthetic 75w-140 plus Ford friction modifier?

I will soon be changing the gear oil in my '03. After searching on the subject, I can't seem to get a straight answer on whether or not Valvoline synthetic gear oil needs the friction modifier added. Some people says it's already included, others say to add it. Can anyone give me a definitive answer?
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Old 08-14-2017, 03:39 PM   #2
gfong
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Re: Valvoline synthetic 75w-140 plus Ford friction modifier?

Quote:
Originally Posted by TorchMach1 View Post
I will soon be changing the gear oil in my '03. After searching on the subject, I can't seem to get a straight answer on whether or not Valvoline synthetic gear oil needs the friction modifier added. Some people says it's already included, others say to add it. Can anyone give me a definitive answer?
Here is the info from Valvoline in one of their pdf's online. But..... Ford service will say different. I do not think there is an answer cause both parties want to sell their stuff.. I used it and now I don't use it. If I was just going by the Valvoline docs I would pass and not use it. Good luck and don't overfill!


Product Information A PRODUCT OF THE VALVOLINE COMPANY A DIVISION OF ASHLAND INC. VALVOLINE SYNPOWER FULL SYNTHETIC GEAR OIL W/LIMITED SLIP

Valvoline SynPower Gear Oil is a superior sulfur-phosphorus extreme pressure gear lubricant formulated with synthetic basestocks and additives to provide excellent performance. It is designed to provide excellent extreme pressure protection, load carrying capacity, anti-foam performance, corrosion protection, and thermal stability protection.

It is recommended for conventional and high performance applications. Valvoline SynPower Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels of limited slip performance. Valvoline SynPower Gear Oil is recommended for use in axle applications requiring factory-fill or drain-and-fill levels of limited slip performance.

Valvoline SynPower 75W-140 is also recommended for use where Ford M2C-192A, GM 12346140, Chrysler MS-8985 , or GL-5 SAE 75W-140 gear oil is specified. The addition of a supplemental friction modifier(Ford M2C- 118-A, Chrysler MS-5630, or GM 1052358) is not required
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Old 08-14-2017, 03:50 PM   #3
TorchMach1
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Re: Valvoline synthetic 75w-140 plus Ford friction modifier?

gfong,

You say you used to use it, but now you do not. What do you use?

I would go with Motorcraft if I didn't think it was just ripping me off.
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Old 08-14-2017, 03:57 PM   #4
j rick kirby
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Re: Valvoline synthetic 75w-140 plus Ford friction modifier?

Royal Purple 75w140 w/o additional friction modifier.
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Old 08-19-2017, 03:40 PM   #5
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Re: Valvoline synthetic 75w-140 plus Ford friction modifier?

+1 on the royal purple.
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Old 08-19-2017, 05:02 PM   #6
gfong
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Re: Valvoline synthetic 75w-140 plus Ford friction modifier?

I use just regular non syn in my Detroit TrueTrac that is why I do not use the Syn or modifier anymore.
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Old 08-20-2017, 02:52 AM   #7
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Re: Valvoline synthetic 75w-140 plus Ford friction modifier?

I use royal purple but still add the ford friction modifier, does hurt for it to be in there and its cheap.
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