Mad skills.
The 2002 Kia Optima has a 5-speed manual.
I own a 2002 Kia Optima SE V6 4 speed automatic transmission, and my owners manual says that you fill the Tansaxle with 8 qts of transmission fluid ATF III, open for discussion.
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No dipstick on the manual trans. You have to remove a plug at the midpoint on the side of the case to check fluid.
Honda manual transmission fluid, from the dealer.
Sp ii sp iii
First off you will need lots of money. Going from an A/T to a manual requires many parts and much modifications unless you can find a donor car to remove parts from. As there was no 2002 Cadillac Deville built with a manual transmission, you will have to fabricate parts and modify others. This would be a daunting task.
The 2002 Ford F-150 owners manual shows Motorcraft MERCON automatic transmission fluid for the 5 speed manual transmission
It is located behind the glove box and instructions are in the manual.
According to the 2002 Ford Mustang Owner Guide : 3.8 liter manual transmission fluid ( Motorcraft MERCON automatic transmission fluid ) 4.6 liter manual transmission fluid ( Motorcraft synthetic MERCON automatic transmission fluid )
The owners manual shows Motorcraft MERCON ATF ( automatic transmission fluid ) in the 5 speed manual transmission
The manual transmission dipstick on a 2002 Subaru WRX is on the passenger side of the engine bay. It is below the air cleaner.