Frequent question: Can you mix different transmission fluids?

What happens if you mix different transmission fluid?

The most common situation where the wrong transmission fluid is used is in the case of using automatic transmission fluid in place of variable transmission fluid and vice versa. Adding ATF to a to a CVT will eventually result in the death of your transmission.

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.

Can you mix ATF brands?

Registered. Sure, you can mix any brands of atf+4.

What happens if I use DEXRON 3 instead of 6?

The GM site says to STAY AWAY FROM DEX III, and only use DEXRON VI. Dexron VI is a lot more stable at higher temperatures and lasts longer. It can also be used to top off dexron 3, however, you can’t use dexron 3 if you already have dexron 6 originally in your trans, or if it has been flushed with dexron 6.

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Can you mix different fluids?

yes they can. i do it often, but i always do a 50/50 mix to be more accurate.

What happens if you mix transmission fluid with oil?

Nothing will happen

Or, you may accidentally end up mixing transmission fluid with oil. In the best-case scenario, nothing bad will happen. If you manage to use the recommended transmission fluid, it may not cause any benefits but still won’t harm the oil or engine.

Is it OK to mix synthetic fluid with regular transmission 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 I just add transmission fluid instead of changing it?

While you may be able to get by with a simple transmission fluid change instead of a full flush when you need a quick fix, it won’t protect your transmission for too long. Meaning it is not the best way to ensure the longevity of your vehicle.

Can changing transmission fluid damage transmission?

ATF without friction modifiers allows less slippage in clutch and band engagement, causing harsh shifts. Changing the transmission fluid on a high-mileage car is risky. Don’t do it unless your transmission is running fine and the fluid is first-rate, because it can make transmission failure imminent.

Can I mix yellow and red ATF?

Yes, you can. Just as you would for your car’s oil and antifreeze or brake fluid—as long as you’re mixing the same type of fluid with another of the same type (for example, ATF+ATF). Mixing different types of power steering fluid can cause you to lose your power steering.

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Can you mix ATF and Dexron?

As to ATF, no problem mixing Dexron and Type F, one can actually fine tune shift harshness as Type F is in fact “grippier”.

Does transmission fluid brand matter?

Brand doesn’t matter but fluid specifications really do, especially with automatic trans fluids. Put the wrong stuff in and your clutch packs burn out fast. Same applied to limited slip differentials. It has to do with the ‘friction modifiers’, additives designed to make the clutches slip (or not) properly.

Can I mix DEXRON III and DEXRON VI?

DEXRON-VI can be used in any proportion in past model vehicles equipped with an automatic transmission, in place of DEXRON-III (for instance, topping off the fluid in the event of a repair or fluid change). DEXRON-VI is also compatible with any former version of DEXRON for use in automatic transmissions.

Which transmission fluid is best?

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.

Do they still make DEXRON III?

All Dexron-III (H) licenses expired permanently at the end of 2011, and GM now supports only Dexron-VI fluids for use in their older automatic transmissions. Aftermarket fluids asserted by their manufacturers to meet Dexron-III(H) and earlier standards continue to be sold under names such as Dex/Merc.