drastically reduce oil burning

I have owned 3 sybarus in the last 15 years all with 2.5 boxer engine. They all started to burn oil at about 30 thousand miles I tried many types of oil with no change in oil consumption untill I used AMS OIL. What a difference only burns about  THIRD of what it did before which was a quart in 2 or 3 thousand miles. The oil is more money but you use less aver all oil. YOU cannot go wrong with AMS oil.