Hello, I wanted to get engine oil for my ProAce Verso (2D – 177hp). According to my instructions, the engine oil for my vehicle should have the approval PSA B71 2321. Problem: Such a engine oil does not exist, as far as I can see, in the free trade. So I asked Toyota, who kindly gave me the order number for engine oil from the Toyota dealer… In addition, the information that the correct specification is the PSA B71 2302. I did not find (or not available). I suspect that this release is no longer up-to-date. I also asked Liqui Moly whether they have an engine oil with the release PSA B71 2321 on offer. They didn’t, only one engine oil with the release PSA B71 2312. One suspects a number turner in the operating manual. It fits that also other manufacturers recommend engine oils with the release PSA B71 2312 for my vehicle. Maybe a space tourer driver would be so nice, m al in his manual to see which release of Citroen is required. Ideal would of course be a 2 liter diesel with 177 hp. Thank you!