500 efi
#1
Platinum Member
![](https://www.offshoreonly.com/forums/images/icons/platinum_member_star.gif)
Thread Starter
![Default](/forums/images/icons/icon1.gif)
Fixing to service a guys boat with 500efi's. What oil have you guys been running in them weight wise, filters and such.
Thanks
Thanks
#2
Platinum Member
![](https://www.offshoreonly.com/forums/images/icons/platinum_member_star.gif)
Join Date: Mar 2004
Location: Hillsborough,NJ
Posts: 467
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
Carter31,
I have used Mobil one 15w-50 in my 500efi's, the Mercury used NGK spark plugs but I put Delco MR43TS's in and have had no problems, I also use the Mercury filters,but aftermarket ones will work.
I have used Mobil one 15w-50 in my 500efi's, the Mercury used NGK spark plugs but I put Delco MR43TS's in and have had no problems, I also use the Mercury filters,but aftermarket ones will work.
Thread
Thread Starter
Forum
Replies
Last Post
tcm07
General Boating Discussion
20
10-03-2008 02:00 PM