just did my first oil change, and agreed with other CX-5 owners :
the easiest oil job ever.
one question, did anyone do this without ramps ? I tried but there wasn't enough space for me....
only hiccup was I had a
very hard time getting the old aluminum crush washer off the drain plug flange, it was really stuck on there, I had to use an xacto knife blade to separate the old crush washer from the drain plug.
note: I can easily see for any first timer to think that there is no crush washer or if they lost the crush washer when it's actually there stuck on the plug flange, I thought the same thing it looked like one piece and the crush washer was missing, but when I compared the new crush washer supplied by Med center Mazda versus the drain plug, I can clearly see the crush washer stuck on there. I used a miniature flat blade screwdriver but that didn't work so I used an Xacto knife to get that damn thing off. I hope no one doubled up on the crush washers thinking the original crush washer was part of the drain plug.
everything was exactly as other posters have said, drain plug is a 8mm hex socket type, so you'll need an 8mm allen key to loosen the plug, and make sure it is inserted all the way into the drain plug before turning. I recommend using a high quality high torque type, don't use those you find at dollar stores, I brought mine from McMaster, it is very high quality made by Wera Tools
McMaster p/n 57185A28 $2.54
https://www.mcmaster.com/#57185a28/=14t9trr
Also, I used Lisle 63600 oil filter tool, highly recommend this, it's idiot proof, only works one way (allows you to loosen only, when installing new filter, hand tighten only don't use wrench)
https://www.amazon.com/dp/ (commissions earned)
like others, I decided to stick with what came with the car and use Mazda moly oil bought from our forum sponsor Med Mazda sold as a set: 5 qt. 0W-20 moly oil, Mazda oil filter, and crush washer
not sure if it matters, but I also pre-filled the new filter with new oil just to make sure when I re-start car there's no oil flow void....
with regards to crush washer, I noticed there was a smooth stamped side and a sharp edge burr side due to the stamping process, I made sure the smooth side is up against the oil tank to prevent scratching /rusting
for those interested, here are the p/n's off the packing list:
oil filter : PE01-14-302A
crush washer: 9956-41-400