Tldr; mechanic doesn't want me to provide my own oil for an oil change
I always try to buy oil at a discount when I see it. My current mechanic charges $100 for 5L of oil, and I often buy the same amount for well under $50 when it is on a massive discount. I normally provide this oil to the mechanic when I take my car in for a service, and ask that they use my oil. A tiny bit of effort to save >$50 on a $400 service seems like a no brainer to me.
Recently, my mechanic said to me "you know, we have oil here too you know" and asked that next time I don't provide my own oil.
I've been doing this for years without issue, and haven't had any issues with any of my previous mechanics either. A good mechanic is hard to find, so I certainly don't want to make a fuss, but I'm not really impressed either. I'm completely fine with paying for their time, and paying their waste disposal fees too, but I'd rather not use their overpriced shop oil. I have a 2014 Subaru XV and use the Castrol Edge Full Synthetic 5W30, so it's not like I'm trying to ask them to put canola oil or fruit juice in there either.
Curious for thoughts. Am I being unreasonable asking them to use my own oil?
There are two perspectives I can see:
Yes, you're being unreasonable: You choose the mechanic, you are choosing the whole service. You don't get to pick and choose.
No, you're not being unreasonable: You're paying them for their time and workshop disposal fees, and providing your own quality oil to save money should be fine. If they want to make more money they should charge appropriate fees for the service, not by jacking the price of oil to pad their pockets.
I mentioned a similar story before: https://www.ozbargain.com.au/node/666448?page=2#comment-1143…
If the mechanic was upfront and said, I want to make money off you, I mark up the oil for profit. Doing so allows me to be here in the future, would you feel comfortable about that?
Rephrase, had the mechanic charged a significantly higher cost in labour (so that the overall total would match his price if he supplied oil), but lower cost for the oil (so this part of the bill/line item would match your cost in oil). Would that be okay?