Havent done by myself since I had a GMC pickup, where exactly is the drian plug and what size is it? I ask because I googled it and the answers were 15mm, I thought we had found it right in the middle back part. I see the filter behind the passenger front wheel, I went and got supplies as well as a 15mm wrench that was too big. Not much for tools at home (yet) have just been buying stuff per job.

The plug we found was red? is there a chance that Mr Quick Lube shop colored it? I have been bringing it to them 2 x year for last 5 years, and finally decided to do it myself.