Mobil 1 vs Mobil Extended

Joined
Nov 16, 2005
Messages
74
Location
Round Rock Texas
Guys: I usually change my oil every 5K miles. I use Mobil 1 5W30 and have excellent results. I was considering switching to Mobile Extended because it has additional additves. Should be better, right? Question: Is Mobil Extended better than regular Mobil 1 for users who change the oil every 5-6K? Note: On the Mobil Extended jug at Wally it was rated SJ and not SM. Can anyone explain this? JR
 
Joined
Jul 9, 2004
Messages
651
Location
Punxsutawney, PA.
For 5k the SM Mobil 1 should be fine. The Extented Performance has the higher levels of zinc and phosphorous so it still carries the SL rating.
 
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