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Redline 351 windsor HO

lefrog

New member
Hi,
some simple advice.
I just need some recommendations re the above engine.
Boat is 2003 Duckworth 5.6m Advantage with AT SD 309 jet pump.
Max RPM @ 4500 & cruise @ 2500 - 3500 RPM.
Engine has heat ex-changer and local water temps. are 63 - 75 F.
Use is mixed fresh and salt.
Generally engine indicated temp is around 150 F depending on load/speed with max 180 F.
Total engine hours are currently 280.
So under these conditions:
a/ what is recommended oil for this application/age.
b/ What is recommended oil & filter change (hours)
Thank you in anticipation.
Regards Rene':)
 
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