Boat oil and filters

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polarisrider1

New member
Eao, What oil and filter do I use in a 2001 Searay 310DA with 350 mercruisers, V drive. 300 hp. Not found on Amsoil web site. I used 10-40 4 stroke marine with K&M filter. Motor is basically a Chevy 350 dry sump with filter at top of motor. mounted offset with filter hanging downward. not upside down same as typical 350 with oil pan but filters mounted much higher. Not sure if valving is different. Frams PH30 works. want to use Amsoil filter with Amsoil oil to skip a year of oil changes if possible.
 
M

miked

Member
I used to use the standard Mercury oil filters with Mobil 1 15-50 in my 502s. Now I run Castrol GTX and FRAM. Is skipping a year really worth it? Marine engines take a lot of abuse compared to cars....
 
F

f8man

New member
Remember you are running 4-5000 rpm use Mercruiser oil and filter ,change oil annually . (Mercury Master tech)
 
E

eao

Active member
I recommend AMSOIL HD Diesel & Marine Engine Oil 15W-40 AME

The oil filter to use is an EAO25 although it has been discontinued by AMSOIL. AMSOIL says to use EAO59.

But I have lot of EAO25's in stock as I have 2 others customers with similar GM engine so I bought them by the case.

AME.jpg
SAE 15W-40 Heavy-Duty Diesel and Marine Motor Oil


AMSOIL Synthetic Heavy Duty Diesel and Marine Motor Oil is recommended for diesel engines, gasoline engines and other applications that require any of the following specifications:

  • SAE 15W-40
  • API CI-4+, CF, CF-2, SL
  • ACEA A3/B3, E2, E3, E5, E7
  • Global DHD-1
  • JASO DH-1
  • Mack EO-M, EO-N
  • DDC Power Guard 93K214
  • Caterpillar ECF-1A, ECF-2
  • Cummins CES 20076, 20077, 20078
  • Volvo VDS-2, VDS-3
  • MB 228.1, 228.3, 229.1
  • MAN 271, 3275
  • MTU Type II
  • Allison C-4

I have the filters in stock and SAE 15W-40 Heavy-Duty Diesel and Marine Motor Oil in quarts, gallons and 2.5 gallon size at my Hubbell shop. I will sell it you at Preferred Customer prices and no S&H charges when picked up.

What you could do is do oil analysis and use that to determine when to change the oil. I have prepaid oil test kits also.
 
Last edited:
P

polarisrider1

New member
eao said:
I recommend AMSOIL HD Diesel & Marine Engine Oil 15W-40 AME

The oil filter to use is an EAO25 although it has been discontinued by AMSOIL. AMSOIL says to use EAO59.

But I have lot of EAO25's in stock as I have 2 others customers with similar GM engine so I bought them by the case.

AME.jpg
SAE 15W-40 Heavy-Duty Diesel and Marine Motor Oil


AMSOIL Synthetic Heavy Duty Diesel and Marine Motor Oil is recommended for diesel engines, gasoline engines and other applications that require any of the following specifications:

  • SAE 15W-40
  • API CI-4+, CF, CF-2, SL
  • ACEA A3/B3, E2, E3, E5, E7
  • Global DHD-1
  • JASO DH-1
  • Mack EO-M, EO-N
  • DDC Power Guard 93K214
  • Caterpillar ECF-1A, ECF-2
  • Cummins CES 20076, 20077, 20078
  • Volvo VDS-2, VDS-3
  • MB 228.1, 228.3, 229.1
  • MAN 271, 3275
  • MTU Type II
  • Allison C-4

I have the filters in stock and SAE 15W-40 Heavy-Duty Diesel and Marine Motor Oil in quarts, gallons and 2.5 gallon size at my Hubbell shop. I will sell it you at Preferred Customer prices and no S&H charges when picked up.

What you could do is do oil analysis and use that to determine when to change the oil. I have prepaid oil test kits also.
Click to expand...

Thank you.
 
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