Synthetic and regular transmission fluid
Captain
Joined: Sep 2006
Posts: 582
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I know people put Synthetic in when they do a fluid change that amount is only about 1/4 of the fluid thats in the tranny that equals a 1 to 4 mix. Most likely not doing any harm but also will be no beneift either. Some say that older trannys are like old people thay don't much like change.
Registered User
Joined: Jul 2008
Posts: 6
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ATF+4 is a full synthetic (in the FAQ).
https://dodgeforum.com/forum/1st-gen...en-1-faqs.html
https://dodgeforum.com/forum/1st-gen...en-1-faqs.html
How do I check my automatic transmission fluid level?- Start engine and bring it to operating temperature (usually done by driving a several miles). With engine at operating temperature, park on a level surface. Shift the transmission through all the gears, and shift into neutral. Set the parking brake and pop the hood. Check transmission fluid (remember, engine must be running, transmission must be warmed up, transmission must be in neutral, and parked on level ground). Adjust as needed using only ATF+3 or ATF+4, DO NOT OVERFILL! For clarification purposes, the use of "ATF+4" on transmission fluids labled as such (not to be confused as "recommended where ATF+4 is called for") is strictly licensed from Chrysler. All ATF+4 fluid is synthetic.
Registered User
Joined: Feb 2009
Posts: 37
Likes: 0
From: Lancaster, PA
"Mopar ATF +3 Type 7176 automatic transmission fluid or equivalent"
ATF +4 is backwards compatible, or equivalent to ATF+3
the differences are relatively minor
give this a shot http://www.allpar.com/mopar/transmissions/fluids.html
ATF +4 is backwards compatible, or equivalent to ATF+3
the differences are relatively minor
give this a shot http://www.allpar.com/mopar/transmissions/fluids.html
Originally Posted by allpar.com
The paper explicitly states that this was because new clutch materials would not be introduced for this fluid and it had to be backwards compatible with ATF+3. Graphs in the paper show that the friction coefficient of fresh ATF+3 and ATF+4 is essentially identical, but as the fluid ages ATF+4 retains the “as new” coefficient while ATF+3 degrades.
