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Joined: Mar 2001
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Can running a 2.5l with an extra quart of oil for about 300 miles (~ 3/4 inch overfill on the stick) damage engine seals or gaskets, or will it just froth up? Here's hoping for the best -- the one thing my SE never did was leak oil. During the time the motor was overfilled, it seem to run fine, except for a momentary hiccup due to a bad plug wire.
When I was under the car today, draining out the mess, I saw there was a wet spot on the engine (passenger) side; however, that could have been spillage from the bum oil change done on Thursday. Any advice is appreciated!
M. Man
RIP '96 SE -- this car's troubles don't belong to me
'01 Eternal Blue Pearl Accord EX Manual
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Joined: Feb 2001
Posts: 707
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That amount of extra oil shouldn't hurt anything. All it would do is slosh and froth and maybe create a little more resistance on your crank causing a small loss of horsepower. Just drain some out maybe even go lower and add up to the full point. Alot of people recommend running an extra quart during a roadcoarse race so I really don't think it would hurt. 
Chad Williams
chad5160@excite.com
'99 SVT Frost Silver #812 of 2760 Born on Jan. 12, 1999
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Joined: Apr 2001
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it has been mentioned elsewhere in this site that to much oil can cause head gasket failure. fair warning.
98 contour gl 2.5 duratec
no mods
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Joined: Jul 2000
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Get them the hell out of there! 3/4" over on the dipstick sounds like more than a quart over! And you CAN blow a gasket if you rev the engine too hard.
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Joined: Dec 2000
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You probably should not have any problems. There is a possibility, if the oil level is excessive, that the crank can whip the oil to a froth. If so, the air entrained in the oil doesn't make a good lubricant and can result in engine damage or excessive wear.
Was the oil foamed when you drained it?
Dan B.
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I recently confronted a tech at my mother's work(Plantation Ford) about the ongoing problem Ford dohc vehicles and oil starvation issue. He stated that he was aware of the problem, and recommended that I run 1/2qt. extra. He stated that it most likely would not froth due to the small amount that is constantly in the oilpan, especially at higher rpm's. Oh yeah, I trust his advice, he is quite an auto enthusiast and personally owns a twelve second Lightning
2000 SVT
silver/blue #1699 of 2150
14.793@94.88
Sho-Shop off road y-pipe for sale($75)
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Joined: Sep 2000
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To make the answer simple.
No Damage. Since none is present now and you caught the mistake.
I also think the up to .5 qt's over probably would not hurt in any event (I've run .25qts over since new - 14k miles) Especially at high rpm's like mentioned because the pump is pushing so much oil it's never pooling in the pan.
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don't oils have anti-foaming agents in them, or no?
98 contour gl 2.5 duratec
no mods
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Joined: Jul 2000
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i know we're supposed to have 5.8quarts...will putting 6 in there hurt anything?
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Originally posted by CrazyCanuck:
don't oils have anti-foaming agents in them, or no? Yes. However, no amount of "anti-foaming" additive will stop the crank from whipping the oil up if overfilled. - 6qts in fine.
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