dionysius

Greetings, I think your friend was concerned with an issue the early RX300 had as well as Toyota's with the same V-6 engine (1998-1999). The cooling ports in the block for those engines were made smaller, causing the engines to run hotter. With non synthetic oils, the oil would sludge severely causing major engine problems. Use a good synthetic oil and you shouldn't have any problems. When in doubt and if your car is a keeper, you can always get an oil analysis done from Blackstone or others for about $25.00. You can trend the wear of just about everything doing that. Denis