Transmission Oil for 2003 with 7.3 - Diesel Forum

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Transmission Oil for 2003 with 7.3

99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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11-19-2009, 05:53 AM	#1 (permalink)
larrymck Member Join Date: Feb 2005 Location: fairfax, va Posts: 47 My Photos: (0) Feedback Score: 0 reviews	Transmission Oil for 2003 with 7.3 I am having a hard time finding plane mercron transmission oil. I have read some time ago not to use the mercron V. Any sugestions. I was planing on servicing my trans this weekend and back flushing the cooler. __________________ 2000 F350 7.3L Stock, automatic trans 2wd changed water pump at 32,000. 2001 Excursion 7.3L Stock, automatic trans 2wd. New transmission at 72,000 miles ford warrantied trans and I paid labor. 2003 F250 7.3L Super Chipped "safe tow mode", Ispro EGT gauge, automatic trans 2wd. No problems knock on wood.

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11-19-2009, 06:02 AM	#2 (permalink)
Mark Kovalsky Join Date: May 1999 Location: Central Florida, USA Posts: 7,637 My Photos: (4) Feedback Score: 0 reviews	Use MERCON V. MERCON has been discontinued. MERCON V was changed to be compatible with all transmissions that used MERCON. __________________ *Mark* Former Automatic Transmission Engineer 1988-2007

11-19-2009, 12:43 PM

#3 (permalink)

SmokeyWren

Join Date: Apr 1999

Location: Midland County,TX, USA

Posts: 36,343

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Quote:

Originally Posted by larrymck

Any sugestions. I was planing on servicing my trans this weekend and back flushing the cooler.

Yeah. Use the procedures in the following link.
Changing ATF: 7.3L PowerStroke Engine and 4R100 Automatic Transmission.

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My Sierra Blanca in the sig pic was a great pickup for 11.5 years. I sold it last year. Replacement is a 2012 F-150 EcoBoost SuperCrew Lariat.

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