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Old 09-11-2018, 01:28 AM   #2 (permalink)
redpoint5
Human Environmentalist
 
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Join Date: Aug 2010
Location: Oregon
Posts: 12,396

Acura TSX - '06 Acura TSX
90 day: 24.19 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 26.68 mpg (US)

Chevy ZR-2 - '03 Chevrolet S10 ZR2
90 day: 17.14 mpg (US)
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Can't speak to what to use, but usually oil change necessity is based on viscosity, and not on color. My truck takes 2.5 gallons of oil, and will make it look black inside of a month.

I wonder if a lab could tell you if the oil needs changing or not?

That said, I wonder what would cause an EV to discolor the fluid? Perhaps in an EV, dark fluid is an indication of needing to change it?
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