i use chevron supreme and have 3800 on my oil now
when i did my oil change it ran very smooth,but
now i notice the motor feels a little rough,
can some one explain this?
WHATS UP NEWBI HERE IVE GOT A 05 GRAND CHEROKEE
AND DID MY 2ND OIL CHANGE USING 5-30 CHEVRON
3K OTC WHY IS MY OIL SO BLACK
4.7 V8 MOTOR
HOW LONG FOR BREAK IN I HAVE 6K ON IT
THANKS