Hi everybody. I have been switching back and forth the oil weights depending on the season. 5W30 in the winter and 10W30 the rest of the other seasons. Ok to switch from the two grades depending on the temperature? 5W30 in the winter since the 5 weight in the winter time is thinner and more beneficial during cold starts. The car is a 1992 Toyota Camry 2.2L four banger with 189,423km(118,219 miles). I do find that after switching from 10W30 to 5W30 I consume about 1/2 quart(473ml) of oil for 3 months/5,000-6,000kms. Why is this? The second oil change with 5W30 the oil consumption is back to normal about 1/4 quart(236ml). Suggestions and comments welcomed. Spector, I couldn't send you a PM. In response to your PM, 1992 Camry 2.2L four banger with 118,219 miles. Still original alternator, water pump, starter, and exhaust except for the front pipe. I use only original OEM parts. Can't buy another Camry because the quality and reliability has dropped since they started production in U.S.A. for the 1997 and up Camrys. '93 to '96 U.S.A. built Camrys were still very good. The best Camrys are the 1992-1996 generation. Spector, do you agree the '92-96 are the best Camrys ever made our of all the generations?