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What type of engine oil are you running?

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Old 09-23-2007, 09:52 PM
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Default What type of engine oil are you running?

What type of oil is recommended in 500 or 525 EFI's

In my shop, I buy Shell Rotella 20W50 Engine oil. I run it in everything the company owns, pickups, dump trucks, excavators, all heavy equipment, and even small engines.

Would the Shell Rotella 20w50 be recommended in the 500 or 525 efi's?

If so, looks like I need to invest in a pump to change my own oil.
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Old 09-23-2007, 11:34 PM
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I used Mobil 1 synthetic (15w 50) in the 500EFIs in the last two boats without any problems and I am using Royal Purple (20w 50) in the Carolinas I have now. If you plan to keep this boat for a while, you might want to install a pre lube / oil change system from Keith Eickert. To change the oil you simpley attach a hose and flip a switch. It is that easy.

http://www.keitheickert.com/detail~ID~6842.aspx

Last edited by Hot Duck; 09-23-2007 at 11:37 PM.
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Old 09-24-2007, 11:39 AM
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Amsoil 20w50
you can see and smell the difference
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Old 09-24-2007, 11:44 AM
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Lucas 20-50 racing Syn
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Old 09-24-2007, 12:44 PM
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I'm using 50w

EDIT* Just realized you were asking about the stock 500s or 525s, I would still be running 25-50w.

Last edited by pkspx; 09-24-2007 at 12:48 PM.
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Old 09-24-2007, 12:46 PM
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used to use merc 25-40 but switched to penzoil 25-50
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Old 09-24-2007, 12:48 PM
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15w-40 Amsoil
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Old 09-24-2007, 01:00 PM
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Pennzoil 25W50
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Old 09-24-2007, 09:48 PM
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Swepco is as good as it gets if you can afford it.
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Old 09-25-2007, 08:24 AM
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Mobil 1 15w 50
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