Okay so at one shop I went it is 25 too,
25 for bringing your own oil they said
lesser I can't remember what 10 or 15 for if you use their oil.
Which means discrimination to you for bringing own oil. You pay them the profit loss for their lack of engine oil sales profit.
Did blow air gun on air filter, pump tyre.
But what amazes me is they pour the bottle of oil like they are so sure they won't overfilled. One pour and then he went to check the dipstick and that's it. When I was home the mark overstretched the MAX by 5mm or so which means overfilled.
And not to mention they didn't rewrap my drain plug with teflon, previously also I had wrapped with teflon tape because the washer is missing. So they just screwed it back with the existing teflon and when I was back, the oil seeped and dripped with small puddle overnight. Went back again to ask them to redo and they weren't too happy like not our fault kind but they did loosen the plug and rewrap new teflon and the seeping is arrested. Overall I don't think the charge and workmanship is satisfactory.

When I buy the engine oil from Honda stockist, they do sell washers. So I'll buy from them and replace the washer every time.

Do you mean with good threads and new bolt, even without a washer also won't leak?

About your spare, if lets say you changed oil and have leaks, how will you proceed to change the washer?
The bolt has to be taken out entirely and the oil has to be catched and poured back again?

I change it myself for all kind of cars, they are all the same anyway. I changed from malaysian brand to japanese to germans. Just slight variation. I hate to say it, but most service place will charge you according to what car u drive. Went to a place to change for myvi charged rm15, came back for vios charged rm25. Then i came with bmw, its suddenly rm40 for labour. I now do it all myself, its not hard anyway.

Drain plug for myvi and vios is the same size. Slightly different position. So the gasket is basically the same. Bmw is smaller. I cant say for gearbox though. Will find out soon and update post here.