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Latest report on the Golf I labeled which oil was used at the top of each column, they have all been 507 spec oils. Even though I haven't needed them for the last 38k miles, they keep giving good results and I'm happy with that. Oil Report April 2018 by DerekG710, on Flickr

Most recent UOA for my Golf. Things continue to look great! I told them I added a Frost Heater and used it on every cold start below 40F. I did not expect it to make a difference really.....iron did go down, but no way of really knowing if the Frost Heater is the reason. It did SIGNIFICANTLY...

Just received my 3rd UOA for the Golf. All good news it seems. Miles on engine- 52,237 Miles on Oil- 7,326 I towed my ~1500lb camper 3k of those miles on 2 different road trips. One to the mountains and one to the desert. Screen Shot 2016-12-15 at 8.17.16 PM by DerekG710, on Flickr I'm not...

This is the 2nd UOA for my Golf. The first one was done with the dealer Castrol Pro and for my first non-free oil change I wanted to try Mobil 1 ESP. I initially planned to change it at 7k for a more apples to apples comparison with the Castrol, but I went on a 3k mile road trip and it was too...

First UOA for my Golf TDI. Screen Shot 2015-10-28 at 8.33.18 PM by DerekG710, on Flickr I refilled with Mobil 1 ESP 5w30 to get a comparison for the next UOA. The car is now tuned and deleted so I may try some non-vw 507 spec next and see what the numbers look like.