Originally Posted By: yonyon
The way I see it, the biggest problem with bulk oil is that so many independent shops have one tank and use that for almost every car that rolls in. There isn't anything wrong with using bulk oils as such, but it can easily lead to using inappropriate oil for the application.
Bulk tanks for car engine oil are not used in Germany, they are only allowed to use a 50 ltr drum with tap, although most use 20 ltr plastic cans on their sides that are fitted with taps. Not much chance of debris or contamination, but there have been some law suits in the US and one in the UK over incorrect drum labels (Citgo case in the US). They were selling GTX 10/40 as Edge in one case, which should be half the price, so I stopped using anything in bulk although a UOA would have picked that one up easily.
A lot of EU Iffy lube places are next to a parts shop, so you can buy your own oil or brake parts for them to use and be fairly sure about what is being used. They will also order up the expensive manufacturers oil & filter if requested.