Welcome to Carver Yachts Owners Forum
We are a boating forum for owners of Carver Yachts to enthusiastically discuss all aspects of Carver Boat ownership. Whether you are looking for your first Carver or currently own one, you are sure to feel at home on CarverYachtOwners.com
You are currently viewing our board as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to searching the forum topics, post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
- Global announcements
- Latest Posts
View the latest post 1985 Crusader 454 ch350 and 2015 Kohler 7.5ekd genset oil
- Posted by: ron54 » September 23rd, 2023, 2:22 pm
- Forum: Gas Engines/Transmissions
Read as many oil posts as I could before asking these questions.
Previous owner used Royal purple 10W–30 HPS in motors, motors have about 1560 hours each. Probably a good idea because of the higher zinc content in the HPS but I think the 30 weight in our hot summers is a little thin. Boat would never run below 45 degrees F. I have pretty much decided to go with Rotella 15w-40 just not sure which one. The GEN set calls for 10 W – 30 when any temperature is below 50°. He gave me about 7 quarts of the Royal purple, may use that in genset, the Kohler oil specified for this advertises added zinc so assuming these are flat tappets. Generator only has 322 hours. Not sure what oil is in it now, was done by local service shop. No record of what oil.
Anyone see a problem with either one of these oils for the described? Also anyone have recent numbers as to the zinc and phosphorus content of the different Rotella oils. Hopefully they’re all above about 1200 which should be fine for these motors I believe.
Thanks
Views: 3095 • Comments: 9 • Write comments [ Back ]
-
- Topics
- Posts
- Last post
-
-
Introduce Yourself!Are you a new member? Stop in and say hi!
- 1224 Topics
- 9498 Posts
-
Last post
Re: Welcome to CarverYachtOwn…
by waybomb View the latest post
April 26th, 2026, 8:14 am
-
-
- 806 Topics
- 6632 Posts
-
Last post
Re: Window Diagram/Blueprint
by km1125 View the latest post
April 9th, 2026, 12:13 pm
-
-
Carver Yachts Forum - Model DiscussionThe is the forum to discuss general information regarding all Carver Yachts.
- 875 Topics
- 5988 Posts
-
Last post
Re: 1995 Carver355 Aft Cabin …
by bud37 View the latest post
April 20th, 2026, 8:07 am
-
-
-
Boating & Cruising LifesyleChat with fellow Carver owners about cruising destinations and more. Plan rendezvous, raft ups & get together's here.
- 164 Topics
- 1881 Posts
-
Last post
Re: Mona passage to PR
by RambleOn506 View the latest post
January 17th, 2026, 6:23 pm
-
-
- Topics
- Posts
- Last post
-
- 450 Topics
- 4091 Posts
-
Last post
Hydraulic Pump Question - Gar…
by NHCarver346 View the latest post
April 26th, 2026, 10:23 am
-
-
General Repairs & MaintenanceAnything related to the operation of your boat. Steering, Bilge Pumps, thru-hulls, bottom paint, etc.
- 1888 Topics
- 13370 Posts
-
Last post
Re: Carver 396 salon window r…
by KyleR View the latest post
April 25th, 2026, 6:03 pm
-
-
-
Gas Engines/TransmissionsGAS engine, transmission and generator repair and maintenance discussion forum.
- 648 Topics
- 6500 Posts
-
Last post
Re: Volvo Penta 8.1 Hard/wont…
by Jskhome62 View the latest post
April 13th, 2026, 8:52 pm
-
-
-
Diesel Engines/TransmissionsDIESEL engine, transmission and generator repair and maintenance discussion forum.
- 182 Topics
- 1176 Posts
-
Last post
Re: 2000 Carver 506 - 6CTA Cu…
by Sump99 View the latest post
February 22nd, 2026, 7:53 am
-
-
-
Electronics & NavigationDiscussion of radars, GPS, autopilots, stereos and TV's. Also iPad and other mobile navigation devices.
- 244 Topics
- 1700 Posts
-
Last post
Re: Transducer cable run
by bud37 View the latest post
April 8th, 2026, 11:52 am
-
-
-
AC/Heat, Plumbing & SanitationDiscussion of AC's, plumbing and sanitation related issues.
- 532 Topics
- 4402 Posts
-
Last post
Re: 355 airconditioning ducti…
by buster53 View the latest post
April 18th, 2026, 1:01 pm
-
-
-
ElectricalDiscussion of batteries, chargers, wiring, generators, distribution panels, battery switches, etc.
- 581 Topics
- 5777 Posts
-
Last post
Re: What type of breaker?
by ck36 View the latest post
April 20th, 2026, 8:44 pm
-
-
- Topics
- Posts
- Last post
-
-
Carver Boats For SaleList your Carver Yacht for sale here. All listings are free for active form members! ALL ADS ARE FREE - USERS MUST HAVE AT LEAST 10 POSTS TO PLACE AN AD
- 122 Topics
- 376 Posts
-
Last post
1985 Carver 3607 available
by Grafunkus View the latest post
April 23rd, 2026, 6:31 pm
-
-
-
Boat Parts For SaleUsed boat parts, used Carver boat parts, trailers, dinghies, outboards, props...everything but the boats they were attached to. ALL ADS ARE FREE - USERS MUST HAVE AT LEAST 10 POSTS TO PLACE AN AD
- 258 Topics
- 1026 Posts
-
Last post
Walter V Drive for Parts Rat…
by SeattleMatt View the latest post
April 23rd, 2026, 4:23 pm
-
Who is online?
In total there are 810 users online :: 5 registered, 0 hidden and 805 guests
Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], sgilbertso, stach454
Newest members
- Username Joined
DandE 25 Apr
Douglastriggs 25 Apr
cgreene 24 Apr
Dlbenford 24 Apr
kbpadro 21 Apr
CVD324 21 Apr
Bkpaynelaw 19 Apr
DrainSurgeon 18 Apr
Statistics
- Totals
Total posts 68141
Total topics 8189
Total Announcements: 0
Total Stickies: 4
Total Attachments: 6662
Topics per day: 2
Posts per day: 14
Users per day: 2
Topics per user: 1
Posts per user: 6
Posts per topic: 8
Total members 11546
Our newest member DandE
Birthdays
- No birthdays today
In the next 30 days
No members have a birthday within this period of time.
Sponsors

