Recent Topics
How thorough are coolant flushes at auto shops?
by Whammo - 11/18/19 10:58 PM
Fixed Orifice PCV design and issues.
by Talent_Keyhole - 11/18/19 10:44 PM
Redline Si-1 turning the light out
by lukejo - 11/18/19 10:16 PM
Quickjack BL-7000EXT
by The Critic - 11/18/19 08:27 PM
'17 Accent
by Al - 11/18/19 07:40 PM
considering a newer car.
by JustinH - 11/18/19 06:56 PM
2007 Accord - P0420 Code
by maverickfhs - 11/18/19 06:52 PM
2009 Ford Focus UOA Mag 1 5W30 4265 miles
by tomcruise - 11/18/19 06:09 PM
What’s in HM oil ?
by kstanf150 - 11/18/19 06:03 PM
Heater Core replacement 1997 Explorer
by racer44 - 11/18/19 06:01 PM
No shocker, but a rip-off story...
by KGMtech - 11/18/19 05:55 PM
AGM Question
by Bear - 11/18/19 05:36 PM
1970 engine noise
by 007 - 11/18/19 04:59 PM
Jalopnik Financial Suggestion
by madRiver - 11/18/19 04:46 PM
Looking for a soft riding car
by Nayov - 11/18/19 04:00 PM
Do you use one filter brand or many?
by wemay - 11/18/19 02:43 PM
ATV engine oil
by supton - 11/18/19 02:02 PM
10w30 HDEO or 15w40, others. What's in your engine?
by 53' Stude - 11/18/19 01:47 PM
GM dealer oil change: Who makes their oil?
by Benzadmiral - 11/18/19 01:45 PM
Newest Members
spiffy63, WhiteMega1227, ak2az, vafan13, Breezeknees
69908 Registered Users
Who's Online Now
82 registered members (Black_Thunder, Blkstanger, AndyB, 2009Caraman, BigCahuna, Blaze, 7 invisible), 1,501 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Most Online3,589
Nov 2nd, 2019
Donate to BITOG
Print Thread
Hop To
2008 Yamaha F350 91 Hrs OCI #5143164 06/24/19 07:39 PM
Joined: Aug 2009
Posts: 24
nicklx Offline OP
OP Offline
Joined: Aug 2009
Posts: 24
Hey folks,

Decided to try a different oil to combat the low viscosity that I was having with the Yamalube 10w-30. Went with West Marine 4 stroke 10w-40 this time. Unfortunately, I don't think the large amount of idling we do helps these motors, but its the nature of our work. Never noticed a significant rise in the oil level of the port motor though. I did skip doing an analysis on the last oil change as it was a short interval and went ahead and did this latest one which was closer to 100 hour interval.

[Linked Image]
[Linked Image]

01 VW Jetta GLS 1.8T
98 BMW M3
04 Passat 1.8t (Currently Rebuilding)
Re: 2008 Yamaha F350 91 Hrs OCI [Re: nicklx] #5143298 06/24/19 10:33 PM
Joined: Jul 2008
Posts: 1,199
rubberchicken Offline
Joined: Jul 2008
Posts: 1,199
I am not impressed with any West Marine 4 stroke oil. If it were mine, I would probably use Amsoil 10w40. Do you do a lot of trolling ? The Fuel and flashpoint are a bit off- perhaps a checkup of your ignition is in order. Maybe a badly gapped plug, or a coil that is marginal.

Re: 2008 Yamaha F350 91 Hrs OCI [Re: nicklx] #5143677 06/25/19 11:02 AM
Joined: May 2012
Posts: 6,773
DoubleWasp Offline
Joined: May 2012
Posts: 6,773
Marine engines get hit from both sides with FD issues. High load and rpm does it. Idling does it. Marine engines spend most of their time either idling or at higher load and rpm.

At least this oil hung on pretty good, and wear metals got a tick better.

07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Previous Thread
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™