Is Penzoil ATF high mileage (Mercron) Ford approved ok

rocket22 · August 23, 2010

See other thread, I am having a trans issue after r/r 4 quarts of trans fluid. Did I use an incorrect product? Is there something else recommended?

safn1949 · August 23, 2010

I believe you are supposed to use Mercon V not regular Mercon.

imp · August 23, 2010

Mercon V is specified for my 2004; my 1996 called for Mercon. What year trans. are we working on here?

Mercon V is expensiver than Mercon. I found one brand, it's an off-brand not well-known name, that claims to meet early and current fluid specs, including Mercon V. Lowest price I found is Wally-World, not name-brand, $3.77 for Mercon V. imp

Gabe96Explorer · August 24, 2010

Ford Recommendation is Mercon 5 - NOT MERCON.

I used Napa Mercon 5... worked great... $3.83 a quart here in Dirty Jersey.

Direct from Ford -

Transmission fluid Motorcraft MERCON V ATF Automatic Transmission (5R55S) 13.0 quarts (12.3L)2

Transmission fluid Motorcraft MERCON SP ATF Automatic Transmission (6R60) 11.2 quarts (10.6L)2

rocket22 · August 24, 2010

here is what the product states- should I switch it out?

Pennzoil® High-Mileage Vehicle™ ATF is formulated for your high-mileage transmission and is suitable for:

•GM DEXRON®-III*.
•Ford MERCON®*.
•Allison C-4.
•Caterpillar TO-2.

I know there are approx 5-6 quarts of this in the trans now. Should I switch it out?

1995 Ford Explorer 2wd with 172K miles

Gabe96Explorer · August 24, 2010

Yes. Use stuff that is labeled specifically... MERCON 5.

rocket22 · August 24, 2010

any recommendations?

I will extract as much as possible over the next few days. Any other additives recommended? Any mecron 5 recommneded (read inexpensive)

Gabe96Explorer · August 24, 2010

Napa has Mercon 5 for $3.83 a quart. Same stuff as valvoline.

iwannabamedic · August 24, 2010

Is the torque converter have a drain plug in the 5R55S?

rocket22 · August 24, 2010

wrong info Gabe

The 1995 2WD auto trans specifies Mercon not Mercon 5. The ATF fluid I added was Mercon labeled, not Mercon 5. I was slightly overfilled as I measured exactly what came out and what went back in. I adjusted by removing a quart and am exactly filled. Mercon 5 was not released until 1997 for Ford vehicles.

Code has not returned, trans is shifting fine and car is coasting better than before. I did remove some nasty trans fluid. Over the past few months I have replaced 8 or 9 quarts so it was more of a diluting than a straight change.

I will see how it goes and will flush with new mercon if the code returns.

Gabe96Explorer · August 24, 2010

My apologies.

wpurple · August 25, 2010

There is an additive that you can add to make Mercon, Mercon V, not sure where it is available though.

gavin · August 27, 2010

imp said:
Mercon V is specified for my 2004; my 1996 called for Mercon. What year trans. are we working on here?

Mercon V is expensiver than Mercon. I found one brand, it's an off-brand not well-known name, that claims to meet early and current fluid specs, including Mercon V. Lowest price I found is Wally-World, not name-brand, $3.77 for Mercon V. imp

rocket22 said:
The 1995 2WD auto trans specifies Mercon not Mercon 5. The ATF fluid I added was Mercon labeled, not Mercon 5. I was slightly overfilled as I measured exactly what came out and what went back in. I adjusted by removing a quart and am exactly filled. Mercon 5 was not released until 1997 for Ford vehicles.

Code has not returned, trans is shifting fine and car is coasting better than before. I did remove some nasty trans fluid. Over the past few months I have replaced 8 or 9 quarts so it was more of a diluting than a straight change.

I will see how it goes and will flush with new mercon if the code returns.

Ford released a TSB, 06-14-4, which states Mercon is to be replaced by Mercon V. This TSB was released in 2006, although it supercedes 01-15-7, which was released in 2001.

The list includes 1991-1997 Explorers. The superceded TSB, 01-15-7, lists 1991-2002 Explorers.

PDF here for last TSB: http://www.aa1car.com/library/ford_tsb_06144.pdf

Here's the TSB that one superceded: http://v8sho.com/SHO/TSB01157ATFUsageChart.htm

imp · August 27, 2010

iwannabamedic said:
Is the torque converter have a drain plug in the 5R55S?

My Ford Shop Manual under 5R55S transmission, says remove torque converter drain plug, "if equipped". Mine ain't so equipped. imp

Is Penzoil ATF high mileage (Mercron) Ford approved ok

rocket22

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