One of my friends has recently bought a Corolla EE110 (1.3L, 1997). Till about one month from purchase, he had no issues with the vehicle. But he has now found out that the car is actually burning oil. There is no visible leak and the engine heat is at the average level too. There is a little bit of white smoke coming out when starting/racing but it does not exhaust any smoke once you get going. According to him, it has 1.70k km on it, which he now believes is doctored. He's not a very rich guy, so he must get going with this car anyway. Which options has he got? What could be done to fix the issue at a minimal cost (rather than the obvious oil top up). Would appreciate your expert advise
P.S: He says that it is slow to start up if kept idle for about a day. He's not a heavy runner, probably about 100km per week.