You beat me to it! It would have been in the sump when I dumped the factory fill at 1,000 miles.I would have switched to 5W-30 at the first oil change.
You beat me to it! It would have been in the sump when I dumped the factory fill at 1,000 miles.I would have switched to 5W-30 at the first oil change.
Ford recommends 5W20 for my 4.2 V6 engine.I use 5w-20 in my Ford as recommended. I would trust Ford engineers over the advice of your mechanic.
My 3.0 seeped like yours from the front and rear main seals. HM oil cured it....has a seep from the rear main seal, but it doesn't actually even hit the ground..
Ford engineers didn't dictate the oil viscosity, CAFE did to make sure they met MPG guidelines... which has NOTHING to do with engine longevity or reliability.I use 5w-20 in my Ford as recommended. I would trust Ford engineers over the advice of your mechanic.
Cop cars and taxis are a different realm... they stay running 90% of the time which has a detrimental effect on the engine reliability.Just think, all those Crown Vics that made it to 400,000 miles as cop cars and later on as taxis running 5W20 bulk oil could have made it to the moon and back if they used synthetic 5W30.
Yep, maybe ten times.Just think, all those Crown Vics that made it to 400,000 miles as cop cars and later on as taxis running 5W20 bulk oil could have made it to the moon and back if they used synthetic 5W30.
Just think, all those Crown Vics that made it to 400,000 miles as cop cars and later on as taxis running 5W20 bulk oil could have made it to the moon and back if they used synthetic 5W30.