Quick Answer: How long does transmission fluid last in the bottle?

Does transmission fluid go bad in bottle?

Motor Oil Expiration Dates & Shelf Life

Currently, according to known oil specialists and lubrication laboratory testing a non-used or non-opened lubricant, engine oil, ATF, coolant, antifreeze, transmission fluid, grease, gear oil, transfer case fluid or brake fluid product has no expiration date.

Does transmission fluid get old?

Transmission fluid does need to be changed from time to time, and the most accurate answer to the question is that the fluid will usually last between 30,000 and 60,000 miles. That said, if your vehicle sustains heavy use, you could have to change the transmission fluid in as few as 15,000 miles.

Does transmission fluid go bad over time?

And like engine oil, transmission fluid (also known as transmission oil or automatic transmission fluid/ATF) can simply go bad over time. Even if you have a full fluid level, the fluid itself may be burnt, cloudy, dirty or full of contaminants that build up through time and use.

How long can a transmission last without changing fluid?

The manufacturer’s maintenance schedule for many automatic transmissions doesn’t call for fresh fluid until 100,000 miles or, with some Ford transmissions, even 150,000 miles. A lot of mechanics say that is too long and that it should be done at least every 50,000 miles.

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Is it bad to change transmission fluid on high mileage?

But, if your car is a high mileage vehicle (think 94k miles or 150,000 km), and is still running on factory-filled transmission oil, you are better off just leaving it alone. Fresh transmission fluid has good cleaning properties. … But a lot can go wrong if you change the transmission oil of a high mileage engine.

Why you should never change transmission fluid?

If you don’t change your transmission fluid frequently, the dirty fluid will not serve as an effective lubricant and it won’t disperse heat well. This will cause wear and tear on the clutches and other parts of your transmission.

How do you know when transmission fluid is bad?

How Do I Tell If My Transmission Fluid Is Bad? Things such as trouble going into gear, hard shifts or thumps between gears, slipping or jumping gears, delay in acceleration, and strange noises such as whining or grinding are all signs it’s time to change the transmission fluid.

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.