Knew this was coming..Friend is using the Premium Wix filters and SUCKING the oil from the dipstick passage every 3000 miles and changing the filter at 10K.....Using Walmart 10w30...Severe use....Also.... lots of dust...I thought these filters were for synthetic...He is using on sale Dino...15 minute oil change he says...Even change it at a rest stop whe3n on vacation....It's getting out of hand....I thought a $27 oil change every 4K was good...Thet right next to my local bar....I do slide a piece of cardboard under there just to check to see if the kid got a text message in the middle of my oil change.......