Ideally you should buy a gl4 fluid from a motorfactors roughly around £10.00gbp
http://www.fordprobestore.co.uk/store/product_info.php?cPath=130&products_id=753&osCsid=106f4122021027c4ce7d23702eb1aa38
this online store should help
dextron mercron
A 1991 Chevy Camaro with a manual transmission needs Dexron II ATF fluid. It provides lubricant and cooling to the transmission.
Mazda recommends 75w-90 weight oil for the manual transmission, changed at 30,000 mile intervals. See http://www.miata.net/garage/maint.html for more information
To change the transmission fluid on a 1991 Mazda Miata, first, ensure the vehicle is on a level surface and secure it with jack stands. Remove the transmission drain plug to drain the old fluid completely, then replace the plug and torque it to the specified setting. Next, remove the fill plug and use a funnel to add new transmission fluid, ensuring you use the correct type specified in the owner's manual. Finally, check the fluid level and replace the fill plug securely.
In a 1991 Ford Ranger : It depends on which 5 speed manual transmission you have The Mitsubishi ( transmission code " D " ) takes ( 2.4 U.S. quarts of 80-90W gear lube ) The Mazda ( trans code " M " ) takes ( 2.8 quarts of MERCON automatic transmission fluid )
I recommend syncromesh
is it an automatic, or manual shift?
80-90 w gear lube ANSWER Motorcraft Mercon Automatic Transmission Fluid in your 1993 Ranger manual (Mazda )transmission (YES - ATF ! ) 80 gear lube was used in 1991 + 1992 for the Mitsubishi manual transmission / 2.9 L engine equipped Rangers
Should be a plug at the side of the transmission - fill to this level
For a 1991 Honda CRX, the recommended manual transmission fluid is typically Honda MTF (Manual Transmission Fluid) or an equivalent 10W-30 weight motor oil. It's important to use a fluid that meets the necessary specifications to ensure optimal performance and longevity of the transmission. Always check the owner's manual for any specific recommendations or updates.
3.9
Dextron 3 automatic transmission fluid. now known as domestic automatic transmission fluid. Yes it is a manual but they used the same stuff. It just lubricates the needle berrings.