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Tgederberg

Overfilling Oil

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The Owners Guide for 2010-12 says do not fill above the top mark as it may cause ENGINE DAMAGE. What does your manual say? If the same, take it to the dealer and show him the manual and have him drain some. When you measure it you should be on level ground and wait 15 minutes after shutdown.

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Normally the charge for an oil change is the same no matter if they use 4 or 6 quarts. It is a good idea to make sure they put in enough and not too much oil though. A little over isn't going to hurt the engine. It will have a well lubed bottom end though if the oil goes over the windage tray, the crank will splash it around a bit. If the crank though is churning through the oil, THAT will damage the engine as it causes the oil to foam and you cant pump foam through an engine.

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The 2010-12 FFHs have had incidents of blowing huge amounts of white smoke on full throttle accelerations in right turns. This may be due to too high an oil level and the crankshaft hitting the oil surface which is slanted due to G's. Crankshafts in modern cars should never hit the liquid oil. They do not do "splash" lubrication. How much is too much? Ford says ( anything ) over the upper mark.

Edited by lolder

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Show them the paragraph in the owners manual about overfilling the oil. When measuring oil level, the car has to be level and measured at least 15 minutes after shutdown. These cars don't burn any oil between 10K changes so having the oil at 1/2 or 3/4 after a change means you won't even have to add any until the engine gets really old.

Edited by lolder

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You will know me, I will be driving an F350 4X4 with whirling machetes on all 4 corners, and covered in blood.

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Wow, you channeled me! What you said is true on so many levels it is sickening. Like the education system. Educate at the lowest common denominator. So the best and brightest are brought down to the level of the least smartest kid.

 

If the oil level is a hair above full, I can live with it, but a 1/4" over, nope. Ideally the oil level should be right in the middle of the hash mark to give room for expansion as it heats up. The thing is, the engine really only needs a few ounces of oil while running, but the capacity is there to keep it cool and to carry out contaminants and slow the break down of lubricant and additives. It doesnt need to be topped off to the max though. Too much and you could wind up foaming the oil as the crank splashes though it. Too much splash and you could wind up sucking oil past the rings and foul the plugs and cats.

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