Careful now,I think a member here is an Autozone employee..
Don't want to make an enemy in your first ten posts..
I did have one ask me if my truck was gas or diesel once though,when I went in looking for spark plugs for my '79 C-10...

..
..and I had asked him for R46ts AC plugs..
He insisted he look them up,"just to be sure" they were the right ones..
After he confirmed they were the correct ones,I asked him "just curious--what does the diesel take for plugs"?...
He went out back and returned with a box of glow plugs,opened it,and went "HUH!"..gee,they sure are DINKY,you'd think a diesel would have BIG spark plugs..and wow,they are TEN BUCKS EACH too!..
I had a hard time holding back my laughter till I got outside and in my truck..