Not all workshop likes someone walk in without using their stuff.
some will jack up the labour price and show you the "piss" Face that they don't welcome their customers bring in own stuff.

And the ones who do it are the Chinese workshop.
(don't mean to be racist)

So true!

All these while I thought these oil/fluid changes would be difficult. After I changed it once, I was hooked

I bought some tools and have been doing these changes on my own for my car (and family, lol)

Oddly, transmission fluid changes are much more easier than engine oil, but more expensive. For engine oil change, its a bit messy as you’ll need to change filter, quite messy. For transmission, its just a bolt, relatively clean procedure

Plus, knowing u’ve done it correctly bring satisfaction

the main important point is not paying rm20-30 for labour but to clear the greasy oil into proper containment area...

If simply throw the oil will bring pollution to environment.. at least those shop will sent back to factory for re-processing.

The used oil can be re-used but price will not be a lot. It's more for environmental issue.

I think it is fair enough to charge labour fees by updating the customer with even RM30-RM50 but definitely not marking up the price of the material till 50% above others market price with profit as this is consider cheating to the customer. I believe people can report them to consumer court for over profiteering as even durian over price also can be reported.