121k 2015 Volvo XC70 Trans Service Quandry

Joined
May 4, 2017
Messages
479
Location
VA
New (to me) 121k XC70 T6 racewagon (300HP I6 Turbo).

The wagon runs well and shifts acceptably, though I would not describe her as a smooth operator in most scenarios. With that said, I do not feel imminent doom, compared to the few that have previously blown up while in the captain's chair. No service history aside from a Carfax entry for "transmission checked"at 98k.

Having asked around the Volvo community, of which I was previously a card-carrying member for years, I have received some interesting information on its servicing.

Theory 1: Per the Volvo Dealership - "This is a lifetime fluid in a sealed transmission case that cannot be changed. Additionally, even if it could be changed, we do not have a fluid pump machine as we don't service Volvo transmissions in any scenario." The dealership actually said this. I did not paraphrase.

Theory 2: Per the Transmission Shop nerds: As metal breakdown accumulates and becomes suspended in the fluid, the emulsion of the two hold the worn gears in decent workable shape and a complete flush and fill will be a 50/50 shot of a rapid trans failure.

Theory 3: Per the Volvo Nerds: Drain out half(4L), refill and call it a day.

What does BITOG say?

Also curious: Liqui Moly LM20032 TOP TEC 1800 ATF + LM ATF Additive VERSUS OE Trans Fluid - What say you?

Thanks for the input!
"Lifetime fluid is a marketing ploy and not a maintenance philosophy. Change it and the filter.
 
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