Frequent question: What is the best automatic transmission fluid?

Our top pick for the best transmission fluid is the Castrol Transmax Dex/Merc ATF. It works for the majority of domestic cars out there and delivers great results. If you’re looking for something even more wallet-friendly, check out the ACDelco Dexron VI Synthetic ATF.

Is Synthetic automatic transmission fluid better?

Synthetic transmission fluid is made to last longer than conventional types, so you can go longer between fluid changes without sacrificing quality lubrication. However, synthetic oil costs more, so we recommend you do the math to see which type of transmission fluid will cost you less over the life of your vehicle.

Does it matter what automatic transmission fluid you use?

Even if you change your transmission fluid, you never will be able to drain all of the fluid from your system so it is important to use the same kind of fluid. It is also important to use the correct type of automatic transmission fluid because different fluids have very different properties.

Is all automatic transmission fluid the same?

Automatic transmission fluids have specific viscosities, friction coefficients, and additives. ATFs are engineered to work with the design of specific automatic transmissions. They are not all the same.

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Can you mix regular transmission fluid with synthetic fluid?

Is it OK to mix synthetic ATF with a conventional and/or synthetic blend ATF? Yes. Synthetic ATF and conventional fluids are 100 percent compatible with each other.

Can you mix old and new transmission fluid?

This fluid starts to lose its standard properties and should be changed to keep the transmission parts and its performance at its peak. Mixing old and news fluids wont give you the ideal viscosity and the reduces the performance of the transmission system.

What is the difference between ATF and ATF 4?

ATF +4 is a synthetic fluid for finely-tuned transmissions, so if you use a non-synthetic ATF instead of ATF +4 in a car or truck that calls for it, you could damage the transmission. You may use ATF +4 in most applications that call for older Dexron and Mercon fluids.

What kind of transmission fluid does Toyota use?

Genuine Toyota ATF – WS is Toyota’s “World Standard” automatic transmission fluid. Specifically formulated for use in Toyota sealed automatic transmissions. Provides optimum frictional performance and durability for consistently smooth shifting over the life of the transmission.

What can be used in place of transmission fluid?

Any light weight quality engine oil or hydraulic fluid will work 5 to 10 single weight or multi weigh 5W-30, 10w 30. Yes.

Does Lucas transmission Fix work immediately?

After adding it to your transmission, you should drive around for 15 – 20 minutes in order for it to fully blend with the existing fluid. You should notice the effects almost immediately.

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Are transmission additives worth it?

Aftermarket additives can disrupt the fluid’s finely tuned chemical balance and degrade performance. Plus, most vehicle and transmission manufacturers warn against using them. If you’re experiencing transmission problems, don’t waste your money on a “miracle” solution in a bottle.

How many quarts of transmission fluid do I need?

In general, transmissions take about 9 to 13 quarts to fill completely. The amount of transmission you add will vary, depending on whether you are draining or replacing it all or you are just topping it up. Again, you should avoid adding too much. It is advisable to put in little amounts at a time.

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