[Milesmonte]

Hi, all I know this may have been discussed here before, but can not find it.
I have a 2023 1 SS with approximately 3,500!
I have changed the Oil Once @ 1,300 Miles is it necessary to change again @ 3,500 or should I wait?

Also what about the differential Fluid should that be changed also at this time with 3,500?

Thank you for your help and thoughts.

[2SS Capt]

I would change both, fluids are cheap, components are not...

[Gen6cyl]

I have v6 manual, limited slip differential. I changed mine at about 35k mile intervals. Now has 73 k miles. Lt1 uses expensive oil I would change at %20-%30 on olm.

[JT6Speed]

Changing the diff fluid wouldn't be a bad idea, after break-in it tends to be kind of murky. As for the oil, you barely have over 2,000 miles on it, so not really necessary, especially if you are using the full synthetic Mobil-1. The only exception would be if it's been over a year since the last change. For example, my standard interval is once yearly, because I drive maybe 1,500 miles a year at best, and so a typical 5,000 mile oil change would take several years to reach (not ideal obviously).

[hrpiii]

Originally Posted by JT6Speed

Changing the diff fluid wouldn't be a bad idea, after break-in it tends to be kind of murky. As for the oil, you barely have over 2,000 miles on it, so not really necessary, especially if you are using the full synthetic Mobil-1. The only exception would be if it's been over a year since the last change. For example, my standard interval is once yearly, because I drive maybe 1,500 miles a year at best, and so a typical 5,000 mile oil change would take several years to reach (not ideal obviously).

I agree with JT6 on the diff fluid. You should base your oil changes on how you drive the car, when, where, etc. Such as if you track your car or just a Daily Driver. if it's your DD and you have already changed for break in, just get on the 5k mile change routine and should be good.

[Milesmonte]

Originally Posted by hrpiii

I agree with JT6 on the diff fluid. You should base your oil changes on how you drive the car, when, where, etc. Such as if you track your car or just a Daily Driver. if it's your DD and you have already changed for break in, just get on the 5k mile change routine and should be good.

Thank you RPI III That's exactly what I did this this morning.
Had the Dealership change out the Differential and had off on the second Oil Change.