it has gotten work on it (pnly work on engine has been timing belt/ oil pressure switch a month ago), it has 133000 miles. I cant afford to redo an engine, i am going to start changing the oil every 2500 miles instead of 3000 ... should i do it sooner and would a product like Restore help reduce the burning of the oil ... what other steps can i take if any to have this car give me another 1-2 years (40-50,000 miles) when i will be able to afford a better minivan