Hello, all. This is my first post here, but I am no stranger to the forum community. I recently opted to change the fluid in both differentials and the CVT in my 2010 Outback (may have been the first time for both at over 180k miles, yikes...). After the job was finished, I decided that I wanted to get magnetic plugs for the transmission drain plug and perhaps also the engine drain plug for the next time I change the fluid in about 6 months (I currently have a Fumoto drain valve installed on the engine oil pan, but would rather have the security of a magnetic plug over the convenience of a drain valve). I believe the stock specs of both the engine and tranny drain plugs are m16x1.5x12 (can anyone confirm?). I can't find a 12mm within a reasonable price, but found a 15mm for over $10 cheaper per bolt, and it appears to be better quality. Will the extra 3mm in length pose an issue in either engine or transmission drain plug applications? I can't imagine that they would, but I'd rather be safe than sorry. Thanks!