Said It Here

Should I change my transmission fluid at 60k miles?

Vehicle manuals often only recommend inspecting transmission fluid at 60k miles, leaving drivers confused about whether to wait until 100k or service it early. This leaves car owners torn between performing a risky full flush or opting for a safer drain and fill to protect their transmission.

Overview
People affected16 accounts across 2 forums
Workarounds found32 items attempted
Community agreement18 total upvotes

What the numbers show

Counted from the threads quoted below. How we count

  • The most recent one is from October 2026.
  • This comes up 9.4× more often in r/MechanicAdvice than across the site as a whole.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

32 items+ Contribute

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Doing a drain and fill instead of a full flush
    2 people mentioned
    Did this help you?
  2. 2
    Following personal maintenance intervals like changing fluid every 50k to 80k miles regardless of manual recommendations
    Did this help you?
  3. 3
    Doing multiple successive drain and fills over a few weeks
    Did this help you?
  4. 4
    Dropping the transmission pan to change the filter and add a magnet
    Did this help you?
  5. 5
    Pulling a transmission return line to flush out most of the old fluid at once
    Did this help you?
  6. 6
    Doing a multi-step incremental drain and fill of one quart at a time over several thousand miles
    Did this help you?
  7. 7
    Avoiding transmission service entirely based on the belief that changing old fluid ruins transmissions
    Did this help you?
  8. 8
    Following the vehicle owner's manual recommendations strictly
    Did this help you?
  9. 9
    Changing transmission fluid based on mileage intervals regardless of manual guidance
    Did this help you?
  10. 10
    Getting a second opinion from a trusted mechanic
    Did this help you?
  11. 11
    Leaving the old transmission fluid alone and letting it ride without servicing it
    Did this help you?
  12. 12
    Avoiding fluid changes on high-mileage automatics to prevent slippage or failure
    Did this help you?
  13. 13
    Checking the vehicle's owner manual
    Did this help you?
  14. 14
    Following a general rule of thumb such as every 30,000 to 40,000 miles
    Did this help you?
  15. 15
    Waiting for the car's maintenance minder system to indicate it
    Did this help you?
  16. 16
    Checking the owner's manual
    Did this help you?
  17. 17
    Getting it serviced at a general 30,000 to 65,000 mile interval
    Did this help you?
  18. 18
    Avoiding fluid changes entirely due to fears of transmission failure
    Did this help you?
  19. 19
    Skipping the service and waiting until the vehicle has higher mileage or experiences actual drivability problems.
    Did this help you?
  20. 20
    Leaving the fluid alone and hoping for the best
    Did this help you?
  21. 21
    Doing a non-pressurized fluid exchange instead of a drain and refill
    Did this help you?
  22. 22
    Checking the fluid level and scanning for transmission codes
    Did this help you?
  23. 23
    Dropping the transmission pan to check for metal or clutch material
    Did this help you?
  24. 24
    leaving the old fluid in place
    Did this help you?
  25. 25
    doing a partial drain and fill
    Did this help you?
  26. 26
    performing multiple successive drain and fills
    Did this help you?
  27. 27
    checking the color of the fluid on a paper towel
    Did this help you?
  28. 28
    sniffing the dipstick to see if it has a horrible burnt smell
    Did this help you?
  29. 29
    inspecting the old filter for metal shavings
    Did this help you?
  30. 30
    Unplugging the negative battery terminal to reset internal hardware
    Did this help you?
  31. 31
    Checking the transmission fluid color and smell
    Did this help you?
  32. 32
    Replacing other cheap sensors (like the knock sensor) hoping it resolves the issue
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/AskMechanics6 people · September 2026 – October 2026

“Asking since I’ve never attempted to replace a gasket filter or drop the pan.”source ↗

No_Cauliflower6339 · r/AskMechanics · 1 upvotes

“Should I have it changed or trust the manufacturer recommendations?”source ↗

bobdobolina2017 · r/AskMechanics · 1 upvotes

“I’ve never changed the transmission fluid. I’m not sure if it was done by the previous owner, but even if it was, it would be way overdue.”source ↗

“Is it safe/recommended to do a simple drain-and-fill without flushing the system? The car is currently running smoothly with no issues shifting, etc.”source ↗

Healthy-Bluejay5905 · r/AskMechanics · 1 upvotes

“That’s my fear 😭 I don’t want to mess up a good thing. It’s just hard to know if not changing it will also result in problems.”source ↗

Healthy-Bluejay5905 · r/AskMechanics · 1 upvotes

“I'm still not very educated on when I should service my transmission fluid”source ↗

iBlueOblivion · r/AskMechanics · 1 upvotes

“I’m considering doing a CVT fluid drain and refill, NOT a flush, using the correct Nissan CVT fluid. However, I’ve heard mixed opinions about changing transmission fluid for the first time when the car already has this many miles.”source ↗

not_real_sakib · r/AskMechanics · 1 upvotes

“Transmission has been flairing up around 500-1k rms worse and more frequent when transmission is cold 1-2 and 2-3 gear slight jerk not much and still accelerating through the flair up.”source ↗

“Also have heard about changing the fluid making transmissions die, not sure if this applies here as fluid seems alright other then maybe looking a bit old”source ↗

“Would it be the right move for me to change the fluid first before assuming damage?”source ↗

Glum_Wealth_8722 · r/AskMechanics · 1 upvotes

“Changed my girlfriend’s transmission fluid at 90,000 miles… this is how it looks like. Should I be concerned?”source ↗

No_Cauliflower6339 · r/AskMechanics
r/MechanicAdvice11 people · September 2026 – October 2026

“Thoughts on when I should do it and is it worth it?”source ↗

“I been reading all over a transmission flush is not good and do a fill and drain.... also read 60k is to early and I should wait till 100k.”source ↗

PerformanceIcy2260 · r/MechanicAdvice · 1 upvotes

“If you're worred about it, just do a drain and fill.”source ↗

howmaster16 · r/MechanicAdvice · 1 upvotes

“Hey I have Honda civic 2021 and I’m still not very educated on when I should service my transmission fluid”source ↗

iBlueOblivion · r/MechanicAdvice · 1 upvotes

“I'm wondering if it's still considered safe to do a fluid change. I've heard you shouldn't change it in older vehicles that didn't have it done regularly throughout their life.”source ↗

oOoceanoOo · r/MechanicAdvice · 1 upvotes

“My car odometer reads 202k miles and im the 3rd owner I dont think the transmission fluid has ever been touched.”source ↗

Arkwoman1990 · r/MechanicAdvice · 1 upvotes

“How necessary is this item on a 2020 Lexus NX 300 with 13,000kms? They say it’s good to do it every 5 years.”source ↗

LivinDoll · r/MechanicAdvice · 1 upvotes

“last month the transmission started slipping. When speeding up into 3rd gear it slips sometimes.”source ↗

Imaginary-Local-7871 · r/MechanicAdvice · 1 upvotes

“If it's already slipping, fresh fluid isn't going to fix that.”source ↗

CommonlyLegitimate · r/MechanicAdvice · 1 upvotes

“im not sure if the car ever got its transmission fluid changed. the fluid is black, how long do you think i can put this off for?”source ↗

prodjxck1 · r/MechanicAdvice · 1 upvotes

“should i do a partial drain or a full drain?”source ↗

prodjxck1 · r/MechanicAdvice · 1 upvotes

“it still wouldn’t change gears at higher speeds (the rpm just creeps up towards 2500 and I don’t test beyond that)”source ↗

“when I press on the gas from 0 sometimes (mainly when I’m making a turn at a stop sign) it sort of stalls, jumps up in rpms a little bit and then smooths out.”source ↗

“should I change out my transmission fluid and could that be responsible for the weird acceleration”source ↗

“I have zero money right now and desperately need my car to keep running until I start a new job so I just need the best advice I can DIY from home”source ↗

kittencorndog · r/MechanicAdvice · 1 upvotes

“I’m sure I will get more conflicting responses, but I’m coming to y’all so I can find the best consensus as to what to do.”source ↗

AdUnhappy6223 · r/MechanicAdvice

Where this came up

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