Close

Manual Transmission Fluid

By Daniel Dillon, April 14, 2008

Manual transmission fluid provides lubrication and acts as a coolant for the transmission. Gear oil is the most commonly used fluid, though some manual transmissions use regular engine oil or automatic transmission fluid.

Symptoms of a Bad or Failing Manual Transmission Fluid

  • Fluid will become dark and gritty
  • Abnormal noise

Manual Transmission Fluid Related Repair Advice

  • Over time, the manual transmission fluid breaks down and becomes contaminated with moisture, which can lead to transmission damage from a lack of proper lubrication. Replace at the mileage/time interval recommended by the vehicle manufacturer.
  • We advise changing the transmission fluid when any significant repair work is being performed on the transmission
  • Noise from the transmission most often will not be resolved by a fluid change. Noise and/or incorrect operation of the transmission is normally a sign of a deeper mechanical problem.
  • High-quality synthetic transmission fluid may help extend the life of transmission components
  • Use of the improper transmission fluid can result in shifting difficulties and premature transmission failure

No comments yet...

Sign in to comment

Related Questions

See what others have asked about this, or visit the Questions page to ask your own question.
Where do i add gear oil at?
I own a 1992 chevrolet 1500 pick up. i need to know where to check the gear oil. it is a 5 speed manual transmission.