2011-2019 Duramax & Powerstroke Fuel System Saver (E05 10505)

So far DD has been good to deal with. I cannot comment on the exergy fuel valve as I am holidaying in Ontario. Was hoping to have the transmission pan by the time I get home later in the month. I have a couple pictures of the rear differential cover I would like to send to you that has a blemish in the o- ring groove from the tool I believe that cuts the groove. I don’t think it’s bad enough to leak as it’s at the top of the cover. I guess we’ll see when Everything is installed and will comment then.

It’s simple and it will do the job hope you never need it but if you do it’s there and well worth the money!!

Great option on the LML to prevent the CP4 from contaminating the system when it fails.