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496 HO Mag (Burning Oil)

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Old 07-26-2006, 12:48 PM
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Default 496 HO Mag (Burning Oil)

I have a 2001 Mercury 496 HO Mag. After I run the boat for a few hours and recheck the oil I find it to be down a half quart. Is this normal, as I have been told that big blocks burn oil? What is a good weight and type oil to use especially in Az temps? Jeff
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Old 07-26-2006, 02:06 PM
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Default Re: 496 HO Mag (Burning Oil)

I can tell you the HP500 burn oil. I hear the factory says up to 1 qt in 5 hours of hard running.
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Old 07-26-2006, 03:43 PM
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Default Re: 496 HO Mag (Burning Oil)

I've got 170 hours on my HO and I don't think I've had to add oil at all. I would keep a close eye on it and see if it continues to use oil. I'd be interested to hear what other HO owners are experiencing.
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Old 07-26-2006, 04:02 PM
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Default Re: 496 HO Mag (Burning Oil)

My '04 496HO doesn't use any oil. My old 454 Mag used a qt about every 10 hours.
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Old 07-26-2006, 06:51 PM
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Default Re: 496 HO Mag (Burning Oil)

real hard running i have noticed that i burn about a half a quart, but thats real hard running for a long time :
does not do it when running normal.
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Old 07-26-2006, 07:42 PM
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Default Re: 496 HO Mag (Burning Oil)

I burn about a gallon of oil evry 5 hours
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Old 07-26-2006, 07:50 PM
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Default Re: 496 HO Mag (Burning Oil)

One does, one doesn't. The one that does burns about a quart every 10 hours...
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Old 07-26-2006, 09:16 PM
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Default Re: 496 HO Mag (Burning Oil)

i hav an02. ive put 30 hours this year and havent lost a drop. i got 230 total and never noticed anything different.
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Old 07-27-2006, 12:52 AM
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Default Re: 496 HO Mag (Burning Oil)

Quote:
Originally Posted by yesrej
i hav an02. ive put 30 hours this year and havent lost a drop. i got 230 total and never noticed anything different.
ditto. pair of HO's never down at all between changes. nearing 200 hours.
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