Best oil and sparkplugs?
#11
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definitely the NGK v power plugs, very reliable and not prone to fouling easily
Many of us run 20/50 oil in our marine 502's and personally I prefer the Mobil 1 v-twin 20/50 or equivalent. Unlike a street motor, marine motors operate at a much higher torque load at all times and the oil has more work to do,
there are many opinions out here on the subject however.
I run my v-twin 50 hours with the m-1 filters. We also ran it in our modified lite dirt race cars.
#13
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http://www.amsoil.com/storefront/ame.aspx
Let the engines warm up real good before hitting the sticks.
Last edited by Hydrocruiser; 01-27-2007 at 10:58 AM.
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The 15W-40 Amsoil is as low that I personally would go in a multi-vis lube for a 502.
Quite frankly I would be surprised if Mobil-1 15W-50 would not do the job for you as it pumps well at lower temps.
Last edited by Hydrocruiser; 01-28-2007 at 10:09 AM.
#16
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For the last couple of years I've been running Kendall GT-1 straight 40w in my 502 mpi I had heard that the Kendall GT-1held better oil pressure than most oils because it would not airerate like other ? From what I've seen I will keep using it.
My new boat has HP500 efi's, what NGK plug would I use in these engines ?
My new boat has HP500 efi's, what NGK plug would I use in these engines ?
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RED LINE ALL THE WAY NOTHING ELSE!!!!!!!!!!!!!!!!!!!!!! There 10 40 has the same viscosity as a 20 50. I used this in my blown 502 for 3 years almost 450hrs. Just tore it down to build a 522 the inside looked almost new! Champian race plugs!
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Ken