Thats wasting money. You are literally spending double the amount of money on oil over the life of a car. The truth is most conventional oils can normally go up to 5K. Synthetics twice that. I was told by an valvoline rep at a service station I worked at in HS that "most can do 5k with ease. The 3k reccomendation is to sell more oil"
There are lot of variables involved, and some engines need to be changed more often than others. Visually inspecting your oil can tell you alot about your engine.
yeah, I guess so. But my 1990 civic is really hold up, it takes me from home to work and that's all Im asking from her. But I also own a Q7, and a GS450 which I change oil every 5k.