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theman440 Wrote:I think the standard is 30,000 miles.
and always change after if you over heat too right?
-John
![[Image: IMG_1711.jpg]](https://dodgecoronet.com/forum/uploads/avatars/IMG_1711.jpg)
1966 Dodge Coronet 440 318 Polysphere 727 auto
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If you look in the owners manual, it will say that the transmission is filled for life and should never need servicing. LOL. I don't think they though we'd still be driving them 47 years later.
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One of my old bosses subscribes to the theory of never changing the fluid. He says that the varnish buildup protects the transmission.
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Sedanman67 Wrote:If you look in the owners manual, it will say that the transmission is filled for life and should never need servicing. LOL. I don't think they though we'd still be driving them 47 years later.
Who's life?
President, New England chapter of Coronetaholics anonomous.
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Sedanman67 Wrote:If you look in the owners manual, it will say that the transmission is filled for life and should never need servicing. LOL. I don't think they though we'd still be driving them 47 years later.
Or never leak..
I love Mopars so much I'm date coding the skid marks in my underwear.
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What about over heating XD
-John
1966 Dodge Coronet 440 318 Polysphere 727 auto
Posts: 3,234
Threads: 304
Joined: Jan 2013
Overheating will definetely shorten it's life. I always subscribed to the look/sniff test. If it started to look brown and started to smell burnt, I changed the fluid.
I love Mopars so much I'm date coding the skid marks in my underwear.
