Almost every car manufacturer recommends against using transmission flushing chemicals, and most will void your transmission warranty if they can prove these chemicals are being used. These chemicals can damage your transmission, which is why most automakers recommend against them.
Is a transmission flush a good idea?
Many manufacturers recommend a transmission flush every 30,000 miles or 2 years. ... A transmission flush can extend the life of your transmission. Like all preventative maintenance, the cost and time of this process can save you from expensive transmission repairs down the road.Jul 16, 2014
Is it better to flush or drain transmission fluid?
Proponents of transmission flushes will often argue that a flush is a better service because it replaces more of your transmission fluid. It's true that removing your transmission pan or draining your transmission via its drain plug (as your car manufacturer intends) only removes about 70% of the fluid inside.
Can changing transmission fluid fix problems?
If you catch a shifting issue very early, a transmission fluid flush can sometimes fix shifting issues. The fresh fluid helps clutch discs and steel discs bond and hold without slipping. The seal conditioners in the new fluid help soften the clutch piston lip seals so they seal better.Oct 27, 2017
Why You Should Never flush your transmission fluid?
Transmission fluid is highly detergent which can wash the varnish off clutches, causing it to slip. Pressure flushing can cause aging seals to start leaking. When it leaks more than a quart it could burn up the unit.