Are Transmission Flushes Really Necessary?
Under normal driving conditions, a flush is NOT necessary at 46K miles. The shops make money on flushes, that's why they recommend them. Most transmissions are good for 100,000 miles before requiring maintenance. I recommend to have a TRANSMISSION SERVICE (new fluid and filter) performed about every 30,000 miles.

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Also to know is, why is a transmission flush necessary?

An automatic transmission's fluid is kept inside the hydraulic lines, so it needs to be 'flushed' or pushed through the lines to drain effectively. It improves smooth shifting: When transmission fluid is replaced and the fluid is flushed, it improves the efficient flow of transmission fluid throughout the system.

Also Know, what happens if you don't get a transmission flush? In manual transmission vehicles, you may find it very hard to change gears at all. A dirty transmission may cause a lack of hydraulic power, much the same as not having enough transmission fluid will cause. In order to stay in the appropriate gear, the transmission must develop enough pressure.

Besides, how much is a transmission flush?

Average Cost and Factors The typical price range for a transmission flush is $125 to $250 – approximately twice as much as a fluid change due to the additional fluid required (12-22 quarts instead of 5-7 quarts) to completely replace the old fluid. The average you can expect to pay is $150 for the full service.

Why You Should Never flush your transmission fluid?

Pressure flushing can cause aging seals to start leaking. When it leaks more than a quart it could burn up the unit. Flushing does not cause the transmission to fail but it may speed up the process because it pushed metal particles back through the system.

Related Question Answers

Should I change transmission fluid if it's never been changed?

If you have never changed the transmission fluid in your vehicle and have more than 100,000 miles on the odometer, should you change it now? However, fresh fluid is not a cure for gears slipping, rough shifting or other mechanical problems, so don't expect a fluid change to be a magic elixir.

When should you not change transmission fluid?

Manual: Most manufacturers recommend that manual transmission fluid be changed every 30,000 to 60,000 miles. Under heavy-duty use, some manufacturers suggest changing transmission fluid every 15,000 miles. Automatic: Service intervals for an automatic transmission vary from every 30,000 miles to never.
James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.