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Nov 16, 2007 | 10:38 PM

Late For Supper

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From: Washington state

Trans fluid

I am wondering what the concensus is of using Amsoil SP trans fluid in my F-350 5 speed auto?

Nov 17, 2007 | 12:45 AM

blackhat620

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From: Arizona

Quote:

Originally Posted by Late For Supper

I am wondering what the concensus is of using Amsoil SP trans fluid in my F-350 5 speed auto?

Not recommended for a stock Torqueshift. Contrary to Amsoils literature, Mercon SP & Mercon V are completely different specification products with different viscosities and add pack requirements and cannot be interchanged. Mercon SP has lower vicosity requirements (5.5-6.0 KV @100C, cSt ASTM D-445) and more stringent cold-temperature Brookfield viscosity requirements than Mercon or Mercon V

Amsoil however states there transmission fluid is good in all transmissions that require either Mercon SP or Mercon V, however this is not possible do to the difference in requirements of the two fluids. You should only use specific Mercon SP in the stock Torqueshift.

You can get Mercon SP from Diesel Filters Online (FTE Sponser).
http://www.dieselfiltersonline.com/X...-Xt-6-Qsp.aspx

Last edited by blackhat620; Nov 17, 2007 at 01:43 AM.

Nov 18, 2007 | 06:42 PM

Late For Supper

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From: Washington state

How about Amsoil in front and rear diff's? I know I need an additive in the rear.

Nov 18, 2007 | 08:13 PM

G BOBKA

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From: Lake Worth, Fla.

I have Amsoil throughout my truck and it never had a problem with it. Over 200,000 miles.

Nov 18, 2007 | 09:32 PM

blackhat620

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From: Arizona

Quote:

Originally Posted by Late For Supper

How about Amsoil in front and rear diff's? I know I need an additive in the rear.

Use whichever brand gear oil you prefer, I prefer Mobil 1 or Royal Purple. The rear must have 75W-140 synthetic, thre front 75W-90 dino or synthetic. Also depending on the brand of gear oil you use, some do not need extra additive for the limited slip.

Last edited by blackhat620; Nov 18, 2007 at 09:57 PM.