WyrTwister said:You do what you want to , it's your money .
For me , the filter gets changed when the oil is changed . Try for 3000 miles on dino & 4500 - 5000 miles on full synthetic .
DIY , it is cheap insurance .[/quote
Yes and unless you're disabled I know very few people that can't crawl under their car once or twice a year I'm 75.