Re: Any Car Negotiation Advice???
 

[quote=cpayne5;784296]Eh, not really.

Different fluids break down is various ways for various reasons. If you want to know the truth and not take a guess, get it analyzed.[/quote]


This and it say since you changed your fluid the tranny has run great for 5k miles really means squat.

You can actually damage an older transmission by changing the fluid, if it has never been changed and then suddenly you change it that could throw your tranny into a tailspin. If you have an old tranny with the original fluid in it better to let it run until it dies then to switch out the fluid.

Re: Any Car Negotiation Advice???
 

[quote=mredskins;784299]This and it say since you changed your fluid the tranny has run great for 5k miles really means squat.

You can actually damage an older transmission by changing the fluid, if it has never been changed and then suddenly you change it that could throw your tranny into a tailspin. If you have an old tranny with the original fluid in it better to let it run until it dies then to switch out the fluid.[/quote]

We do used oil analysis here at the shop, and it really is amazing as to what it can tell you.

And i do agree with the not changing the old fluid in very old transmissions. There is actually a transmission recharge kit that we put in the old transmissions when the fluid is changed in old units. What it does is put a coating back on the friction plates after fresh fluid goes in. This is why old transmissions fail in older mainly pre 2000 year vehicles. The fresh fluid washes off all the friction material on the plates, and they slip and fail. most modern transmissions are essentially computer controlled manuals, and they handle fluid changes just fine...