Hey guys,   Im driving an '03 2.0R legacy atm and its sucking through oil like there is no tomorrow. A mechanic friend told me to try different oils.   I've tried a few different brands of 5w30 (carbol fuchs, penrite, castrol..) and cant really find one that will last.   I service the thing religiously (every 3-3500km) but still use just over a litre of oil in that time..   There are no leaks, it doesnt seem to be directly burning the oil (ie. no black or