Our shop uses BG products, such as their trann flush machines, PS flush machines, Brake flush machines, 44k, and air induction services. I only really use 44k, induction services, and RF-7 in my oil. Tranny flush can be avoided if you drain and fill every 10kmiles IMO. and their dot4 brake fluid is what i use in my car but it comes in a 1 quart bottle, so it should ony be used for flushing.