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They have the 4R70W transmission.
mercon v
Dexron 3.
R134
Check your manual.
The type of transmission fluid to use should be engraved into your automatic transmission fluid dipstick ( at least it is on the newer model years )
Mercon automatic transmission fluid.
According to the 1997 Lincoln Town Car Owner Guide : ( Motorcraft MERCON automatic transmission fluid ) * check to see if the type used is engraved in your automatic transmission fluid dipstick *
R-134
According to the 1998 Lincoln Navigator Owner Guide : ( Motorcraft MERCON automatic transmission fluid ) * the type of fluid used should be engraved in the automatic transmission fluid dipstick or indicated on the dipstick handle *
What type of transmission fluid does my 1989 toyota pick up truck take, manual 4 speed.
The best way to confirm the type of transmission fluid to use in a 1989 Isuzu pick up is to refer to the owner manual. A retailer who sells the transmission fluid will be able to advise the correct purchase.