Two very different ways of TRANSMISSION FLUID Drain / Fill method

[JGDallas]

Very dood advice! Well taken. Thanks

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[JGDallas]

What is a PB ?

 

[JGDallas]

What is a PB?

 

[JGDallas]

If you have a non PB, buy the aftermarket pan/ filter & fluid and do the swap around 50K and just drain and refill every 50K afterwards. Sooner if you tow often.

If you have a PB, vacuum out the fluid and replace. I'd recommend doing about 1 gallon every 3rd oil change.

GL.

Thanks, but what is a PB? Feel free to dumb it down please.

 

[teamroper60]

Powerboost is my presumption

 

[jkosh22]

Yes, PB is powerboost. They need to make a thread just to describe acronyms.

 

[Suns_PSD]

Thanks, but what is a PB? Feel free to dumb it down please.

Yah, PB = Powerboost. The PB's use a special oil pan that has oil flow lines through it, as such there is no aftermarket version.
Additionally, removing the pan is a true PITA on the PB. Thankfully it's pretty simply to just vacuum out about 5 quarts and pump 5 back in.
I did mine for the first time just last week at 70K miles and the old fluid came out black and even only swapping out 42% of the fluid, my trans now shifts WAY better.

I'd recommend not waiting as long as I did.

 

[JGDallas]

Yah, PB = Powerboost. The PB's use a special oil pan that has oil flow lines through it, as such there is no aftermarket version.
Additionally, removing the pan is a true PITA on the PB. Thankfully it's pretty simply to just vacuum out about 5 quarts and pump 5 back in.
I did mine for the first time just last week at 70K miles and the old fluid came out black and even only swapping out 42% of the fluid, my trans now shifts WAY better.

I'd recommend not waiting as long as I did.

Is EcoBoost the same as PowerBoost?
Mine is 2022 2.7L V6 twin-turbo motor … does that make it a power boost or ecoboost ?

 

[Suns_PSD]

The PB refers to the hybrid only. Not the same as the Ecoboosts.

 

[jkosh22]

Is EcoBoost the same as PowerBoost?
Mine is 2022 2.7L V6 twin-turbo motor … does that make it a power boost or ecoboost ?

The 2.7 is solely an ecoboost. 3.5 is solely an ecoboost. But the powerboost is a 3.5 ecoboost with hybrid technology.

 

[JGDallas]

Just Checked the oil level using the dipstick on my 2022 XL-2WD. 2.7L V6. Truck has around 61k miles of single driving. No towing, no hard driving, 75% highway and 25% city. Plan is to drain and fill for the first time (and folks have assured I should have done it 30k miles ago). Here’s what positively shocking…. The oil level was perfect, the color was wine pink, felt nothing metallic as I rubbed it on back of my palm, and above all…. Doesn’t smell burnt or “different”. Guess what …. Smelt like the fresh oil I am getting to pour in.

Today I’ll extract 5-10 cc using a clean dropper, and do a side by side comparison with fresh Mercon ULV …. Color, smell etc. If the two don’t look/smell/feel too different, I’ll send them to the lab for testing. Will keep you updated with the results.

My 60-yr old Mercedes service manager (with 35 years history as a tech at various brands) told me most vehicles built 2015 onwards are extremely well closed systems, and the oils that circulate are super synthetic with properties that don’t break down easily. Filters inside are robust but are fishnets to trap accidental debris… the size of a birdseed at best… and that’s good enough for the transmission. The best filters on our autos are cabin (highest filtration), engine oil (second best), and engine (third best).

Anyway, still learning, and will post later today with my current 61k mile oil vs fresh oil. Also, thanks for all your feedback, tech or otherwise. I am learning, so it really helps

Did the old oil and new oil side by side test. See the attached pictures. Optically, they are totally different. New smellls more “chemically” and old smells “smoked not burnt”. Feel no difference rubbing them on fingers. That said, for the peace of mind, I will do the drain/fill/drive/drain/fill from the dipstick right away.

I will still send sample with 61k miles to lab for their composition tests and contamination tests. I am still not sold on dropping a factory fitted pan that’s a closed system. The dealer told me they WILL NOT drop pan and change filter unless there is a problem or recall. But I’ll learn more along the way. At least the 61K mile test on oil will tell chemical and technical degradation oil has had, and maybe how frequent the oil changes should be for my application.

 

[JGDallas]

Did the old oil and new oil side by side test. See the attached pictures. Optically, they are totally different. New smellls more “chemically” and old smells “smoked not burnt”. Feel no difference rubbing them on fingers. That said, for the peace of mind, I will do the drain/fill/drive/drain/fill from the dipstick right away.

I will still send sample with 61k miles to lab for their composition tests and contamination tests. I am still not sold on dropping a factory fitted pan that’s a closed system. The dealer told me they WILL NOT drop pan and change filter unless there is a problem or recall. But I’ll learn more along the way. At least the 61K mile test on oil will tell chemical and technical degradation oil has had, and maybe how frequent the oil changes should be for my application.

Showed the color results to a mechanic friend. He grinned and said any oil will change color and smell within 1000 miles in any engine, transmission, differential… basically a few heat cycles are enough to change appearance and odor. What’s important is how the thermal, fluid and chemical properties are remaining consistent to original fresh fluid.

 

[FaaWrenchBndr]

The 2.7 is solely an ecoboost. 3.5 is solely an ecoboost. But the powerboost is a 3.5 ecoboost with hybrid technology.

With different transmission fluid level
Apples and oranges

 

[jkosh22]

With different transmission fluid level
Apples and oranges

The only one that’s different would be the power boost.

 

[FaaWrenchBndr]

The only one that’s different would be the power boost.

quite a bit of differences between a eco-boost and a powerboost

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