03-03-2010, 08:00 PM
1. Use up whatever's leftover in your garage.
2. Then stick with what the owner's manual says.
The guy at the dealer is confusing the oil's heat range on the lower end (ability to flow well at low temperatures) with an assumed need to "cork up" the engine with "thick" oil so that it doesn't burn the oil due to "extra space" between the piston rings and piston walls.
If you're confused, imagine the parts guy.
2. Then stick with what the owner's manual says.
The guy at the dealer is confusing the oil's heat range on the lower end (ability to flow well at low temperatures) with an assumed need to "cork up" the engine with "thick" oil so that it doesn't burn the oil due to "extra space" between the piston rings and piston walls.
If you're confused, imagine the parts guy.