Hi guys..quick question! I just bought a 1994 sc300 with only 112k miles..It been uses with regular oil..should I switch to Mobile1 oil? would this give me a problem if I make this change to Mobile1?
thanks

you can switch but I would do a pan off flush to get the old sludge out first. You should not break in a motor on any synthetic oil, but there will be no harm (or gain) to go to one after a few K's on the odometer. A Bypass oil filter will keep non detergent oil looking new for 100K, check out http://www.bypassfilter.com/pg/article2.htm