Bob,
The biggest enemy of ATF is heat. That's the main reason most of it is
synthetic today. Synthetics were developed post-WWII for jet engine
bearings. We could build turbines, but the oil technology couldn't support the
lubrication requirements (heat and high RPMs).
If it's a dark red or black, time to change, regardless of factory
service intervals.It's only $100 for a change. A rebuilt tranny is $2500.
Thanks,
Vic Snively
'75 TR6 w/AC
In a message dated 9/11/2010 10:14:29 AM Eastern Daylight Time,
75tr6@tr6.danielsonfamily.org writes:
No Triumph content
Does ATF fluid change from red to black over time? I've got an 07 Mazda3
with 40K miles that runs great. At the last oil change, the quick lube
guys
were saying that the ATF fluid needed to be changed because it was no
longer
red and was therefore dirty. Nothing in my manual about ever needing to
change ATF............... Are the quick lube guys just looking to pad the
profits? Or should ATF stay red even after 40K?
Thanks
Bob Danielson
1975 TR6 CF38503U
Running w/ Throttle Body Injection,
Toyota 5 speed & Nissan LSD
http://tr6.danielsonfamily.org
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