Owner's Manual
Page 243
... reformulated gasolines will provide excellent performance and durability of premium gasoline is not recommended. 3.5L and 5.7L Engines 5 Continued heavy spark knock can cause problems such as "Reformulated Gasoline". The use of 87. 2.7L Engines Over 40 automobile manufacturers around the world have issued and endorsed consistent gasoline specifications (the World Wide Fuel...
... reformulated gasolines will provide excellent performance and durability of premium gasoline is not recommended. 3.5L and 5.7L Engines 5 Continued heavy spark knock can cause problems such as "Reformulated Gasoline". The use of 87. 2.7L Engines Over 40 automobile manufacturers around the world have issued and endorsed consistent gasoline specifications (the World Wide Fuel...