What’s a good alternative for GM Auto Trak II fluid?

Oils & Fluids
1

I’ve been trying to figure out what to use instead of GM Auto Trak II fluid for my vehicle’s transfer case. It seems a bit pricey, and I’m wondering if there are any suitable alternatives that would work just as well without breaking the bank. Here are some details and questions I’d love your thoughts on:

Why I’m Looking for Alternatives

  • Cost: The official GM fluid is somewhat expensive, and I want to find something more budget-friendly.
  • Availability: Sometimes it’s hard to find, especially if I’m in a pinch and need to do a quick fluid change.

What I’ve Found So Far

I’ve seen some discussions mentioning fluids like the Dexron series. However, I want to be sure that anything I consider is compatible and doesn’t cause any issues with my transfer case. Here are some specific questions I have:

1. What Fluids Have You Used?

  • If you’ve used something other than Auto Trak II, please share what fluid it was and your experience with it.

2. Any Brands to Avoid?

  • Are there any specific brands or types that you found didn’t work well, or that caused problems?

3. Long-term Effects?

  • If you’ve switched to an alternative for a while, did you notice any changes in performance or longevity?

Conclusion

I’d appreciate any input or advice you have on this topic! Finding alternatives that are reliable is important to me. Thanks in advance for your help!

5 Likes
2

I’ve been using Valvoline ATF+4 for my GM vehicles, and it has worked well. It’s designed for various transmissions and is a good alternative to GM Auto Trak II fluid! Always check the viscosity specs, though.

3

That’s great to hear! I’ve also heard that Mobil 1 synthetic ATF works well for various applications, including those that require GM Auto Trak II fluid.

4

What about the viscosity of these fluids? Does anyone know if they match GM Auto Trak II closely? I want to ensure compatibility before switching.

5

Great question! GM Auto Trak II fluid has a unique viscosity, which is why you need to be cautious when selecting alternatives. You might want to look at Multi-Vehicle ATFs that specify compatibility.

6

I’ve also found that some people swear by using Amsoil ATF, citing its performance in high-stress conditions! What do you all think about its compatibility?

6 Likes
7

Amsoil is known for its high-quality fluids! However, I’d still verify viscosity and vehicle requirements. It’s always important to ensure compatibility.

8

Has anyone experienced shifting issues after using an alternative fluid? I really want to avoid any potential problems.

9

I switched to a different fluid once, and it led to some rough shifts! It’s essential to stick to fluids that are specifically recommended or closely match GM Auto Trak II in specs.

10

Exactly! Compatibility is key. Sometimes it’s better to pay a little more for peace of mind with transmission fluids.

8 Likes
11

I wonder if you could use a different brand and still get similar performance. Has anyone done extensive testing?

12

I’ve tried a few brands and found that some work fine, but others lead to issues with performance. Always research reviews!

13

Definitely! Reviews can be so helpful in making decisions on fluid choices. It’s like the wild west out there with all these options!

14

Don’t forget to consider the weather too! Some fluids perform better in extreme temperatures. Anyone have experience with that?

7 Likes
15

That’s true! I’ve noticed that some alternatives become less effective in colder conditions. Friction modifiers in fluids can play a role as well.

2 Likes
16

Haha, sounds like we’re talking about a romance novel for fluids! All this talk of compatibility and performance! But really, good points all around.

17

I’ve found that Mobil 1 Synthetic ATF works well as an alternative to GM Auto Trak II fluid. My truck shifts smoother after I made the switch.

18

I’ve also had a good experience with Valvoline DEXRON VI. It’s similar in terms of specifications and has worked great in both of my vehicles!

19

I tried using Royal Purple Max ATF and noticed improved performance in my vehicle. Just make sure to check compatibility for your specific model.

20

Is it really necessary to stick to GM Auto Trak II fluid? I mean, aren’t there enough alternatives that work just as well?