Quick oil question

Hay quick question for you guys since i didnt catch it till now. I noticed the shop i did my oil at used chevron delco 400 sde 15w40 instead of my normal shell rotella 15w40 T4 even though its even noted i asked for rotella T4.

Its not a huge deal since it likely wont hurt anything but chevrons webpage is as clear as mud so im not sure if this is a full syntheic, semi synthetic or conventional oil. Mostly want to know since my truck seems to have a hate ##### for conventional and destroys it after around 13k miles per every sample ive ever done lol

 

Ahh that would be why my bill says sde400k4 and when i put that in google it only gave me a discontenued product with minimial info and a link to another discontenued product that lead to yet another and like 500 diffrent weird results. Poped that in and its the replacment to my replacment lol. Apprecate it mate.

Also i literally just noticed i typed T4 like an idiot because i was looking at the wrong recipt while writeing that /facepalm welp i henceforth claim that as my bloody blond moment for the day. I use the t5 blend not the t4 conventional.