500 EFI Oil Questions

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04-12-2008, 09:28 PM

#11

J.B. Marshall

JB Marshall

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I have stayed with Merc 20/50 oil & filters. Don't know if I would get better performance if I switched after 250 hrs.

Anyone have any input on that???

04-13-2008, 12:15 AM

#12

Sydwayz

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Mobil 1 15w50
Napa Wix Racing Filter 51061R (Best filter on the market.)

04-13-2008, 06:46 AM

#13

purnell

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royal purple in everything, merc. filters

04-13-2008, 07:54 AM

#14

offshoredrillin

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Quote:

Originally Posted by Sydwayz

Mobil 1 15w50
Napa Wix Racing Filter 51061R (Best filter on the market.)

this is what I run as well.

04-13-2008, 12:38 PM

#15

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We use Merc 20w/50 oil and Merc filters change every 20 hrs or so, so far 280 hrs and no problems

04-14-2008, 01:53 PM

#16

45SS

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I used mobil one, no complaints at all. I switched to Royal Purple. I know people in racing who say they are showing slighty better numbers on the dyno. I like the Wix filters, they make a anti- drain back filter that if you are quick enough does not dump alot of the oil all over things when you remove it.