More shift shock using Maxlife?

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Jan 7, 2011
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I've noticed some more shift shock when using Maxlife sometimes - other times it's smooth. Perhaps it's throttle dependent. The fluid level and condition is spot on. I'll be adding an auxiliary B&M transmission cooler and a Magnefine filter in the next few weeks, too. Is Maxlife possibly too thin for my Pathfinder which specifies Matic-D? Should I try adding some Lubegard Red or try using a different or OEM ATF? Other than the shift shock, I have no issues with the transmission at this time.
 
By "shift shock" do you mean "firmer shift"?

I personally would use this ATF in about anything and wouldn't add anything to it.
 
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Yeah, I guess it's a firmer shift. It's more noticeable (to me, anyway).

Fluid history:
2011-01-10 - ~5.5qt Genuine Nissan Matic-D (pan drop and filter/gasket change)
2011-02-12 - 4qt Valvoline Maxlife (drain & fill)
2011-04-25 4qt Valvoline Maxlife (drain & fill)
 
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Try disconnecting the battery for a few minutes to reset the fuzzy logic on the transmission.
 
Towncivilian,
If it's any consolation, my 2004 Altima 2.5 S has a firm shift from day one although it isn't disturbing, just firm! I have used the factory fill which was OE Matic D, then switched to Mobil 1 Dex/Merc ATF in 2007(before Mobil 1 changed to milti vehicle) and finaly Castrol IMV in 2010. I feel no differenct in any of them. Don't know if this helpes but, try what CMF suggest by doing a battery disconnect and waiting a couple of weeks to really notice the difference. Or, go back to the ATF that worked best for you and see if the quality shifting returns with it.
 
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