cigars01
Member
- Sep 1, 2016
- 124
- Boat Info
- 1981 Searay 310 Vanguard Express Cruiser.
- Engines
- Twin 454 Crusaders Direct Drive
I am sure this has been asked but I cannot find a thread for it . I also asked on another site and got a bunch of different opinions.
I am about to change the oil on my engines (my first time). The engines are crusader 454 350hp. They were installed in 1999 but the serial numbers tell me the blocks are from 78-90. They have 370 hours on them. The mechanic last year said he used 15w/40.
Another site some guys said use a straight 30, others said 15/40 is for diesels and others said that is what they use in their gas engines as well as diesel.
I boat in Georgia and plan to use the boat some during the winter.
Should I add anything to the oil like Mystery oil or zinc
Does it matter what brand of filter. The ones on there now are Wix 51515
What say you guys?
I am about to change the oil on my engines (my first time). The engines are crusader 454 350hp. They were installed in 1999 but the serial numbers tell me the blocks are from 78-90. They have 370 hours on them. The mechanic last year said he used 15w/40.
Another site some guys said use a straight 30, others said 15/40 is for diesels and others said that is what they use in their gas engines as well as diesel.
I boat in Georgia and plan to use the boat some during the winter.
Should I add anything to the oil like Mystery oil or zinc
Does it matter what brand of filter. The ones on there now are Wix 51515
What say you guys?