Like Tree0Likes

Oil Weight with 130 degrees thermostat

Reply
Old 03-17-2008, 07:08 PM
  #1
Gold Member
Gold Member
Thread Starter
 
Join Date: Feb 2006
Location: Cicero, NY
My Boats: Wellcraft Excalibur 26
Posts: 162
Default Oil Weight with 130 degrees thermostat

Guys looking for a bit of Oil advise, I have a 600 HP 496 (Tyler Crocket Motor). Last season I ran the Mobil1 15-50 as it seem to be one of the site favorites. Tword the end of the season it kind of dawned on my I have 130 degree T-stat and my motor never really heats up.

I am thinking I will need to adjust the oil weight to compesate for this, just do not know what direction to go with the weight and how much of a change.

Mobile one does not have a ton of viscosity options listed on there site.
JBoat is offline  
Reply With Quote
Old 03-17-2008, 07:55 PM
  #2
Registered
 
Back4More's Avatar
 
Join Date: Feb 2002
Location: Lake Michigan
My Boats: 353 Fastech
Posts: 6,624
Default

Just a reminder...Mobil 1 15w-50 is for flat tappets.

Last edited by Back4More; 03-17-2008 at 08:02 PM.
Back4More is offline  
Reply With Quote
Old 03-17-2008, 08:01 PM
  #3
Neno the mind boggler
VIP Member
Trade Score: (1)
 
glassdave's Avatar
 
Join Date: Sep 2001
Location: toledo oh
My Boats: Batboat, 38 Scarab Thunder, 16 Sidewinder, 27 Magnum
Posts: 12,667
Default

I would be more concerned with getting some temps in the engine. I get a little nervous with running a motor that cool. What is your oil temp? If it dosent get up to proper operating levels about all you get is a high pressure without proper distribution.
__________________
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
glassdave is offline  
Reply With Quote
Old 03-17-2008, 08:03 PM
  #4
Gold Member
Gold Member
 
pkspx's Avatar
 
Join Date: Sep 2003
Location: Fort Lauderdale, FL
Posts: 1,218
Default

I use ONLY use Pennzoil 50w and run without TStat. With the stock 700SCI oil cooler I run it takes a year to get the oil warmed up but WOT it never moves over 240.
pkspx is offline  
Reply With Quote
Old 03-17-2008, 08:19 PM
  #5
Registered
 
H2Xmark's Avatar
 
Join Date: Apr 2001
Location: beaumont tx
My Boats: 1997 Fountain 35 Lightning
Posts: 1,703
Default

i would call Tyler and see what he would use, need to know water and oil temps plus bearing clearances to pick right weight oil
H2Xmark is offline  
Reply With Quote
Old 03-17-2008, 08:22 PM
  #6
SORE MEMBER
Platinum Member
 
Wobble's Avatar
 
Join Date: Apr 2004
Location: 2950'49.74"N 95 5'17.55"W.......TEXAS
My Boats: SeaDoo RXP & RXP-X, Stryker Equalizer 28, Eliminator Daytona Jet
Posts: 6,708
Default

Quote:
Originally Posted by Back4More View Post
Just a reminder...Mobil 1 15w-50 is for flat tappets.
Thats the first time i have heard that.
Wobble is offline  
Reply With Quote
Old 03-17-2008, 09:07 PM
  #7
Registered
 
Brad Zastrow's Avatar
 
Join Date: Jun 2001
Location: McHenry, Illinois
Posts: 2,244
Default

I run oil thermostats to get the oil up to 212 degree with straight 50 wt. Cold water temps are ok, cold oil is not. There is debate about full synthetic oil causing roller lifters to slide and cause flat spots on the roller. That is what I have read, maybe someone can say for sure.
Brad Zastrow is offline  
Reply With Quote
Old 03-17-2008, 10:46 PM
  #8
Charter Member # 55
Charter Member
 
Griff's Avatar
 
Join Date: Oct 2000
Location: Omaha
My Boats: .......32............. ...............Active Thunder....
Posts: 15,752
Default

Quote:
Originally Posted by Back4More View Post
Just a reminder...Mobil 1 15w-50 is for flat tappets.

Why is that????? I highly doubt that all the new performance cars that use Mobil1 synthetic as OEM are running flat tappets. I've heard the rumor that its so slick that the rollers on the lifters don't roll and just slide. I'm gonna call bs without any proof. I've run Mobil1 15-50 with roller cams with no issues.


Now to JBoats question. Your 130* water temp has little do with the oil temp. If you are not getting condensation in your oil, the oil temp is plenty hot at 220*
I ran M1 15-50 in my 525SC with a bigger roller cam and stock 140* tstat and my water temps never went above 150*. The mobil 1 oil was used for 400+hrs in that engine.
Griff is offline  
Reply With Quote
Old 03-17-2008, 11:46 PM
  #9
Registered
 
Rebel_Heart's Avatar
 
Join Date: Feb 2004
Location: LOTO
My Boats: Fountain - 2001 35 Classic, Nortech - 2015 340 Sport Open
Posts: 1,173
Default

My 540s never get above 180 at WOT. I run straight 40w Valvoline. I haven't seen any evidence of condensation. Water temps are low.
Rebel_Heart is offline  
Reply With Quote
Old 03-18-2008, 12:03 AM
  #10
Registered
 
Back4More's Avatar
 
Join Date: Feb 2002
Location: Lake Michigan
My Boats: 353 Fastech
Posts: 6,624
Default

Quote:
Originally Posted by Griff View Post
Why is that????? I highly doubt that all the new performance cars that use Mobil1 synthetic as OEM are running flat tappets. I've heard the rumor that its so slick that the rollers on the lifters don't roll and just slide. I'm gonna call bs without any proof. I've run Mobil1 15-50 with roller cams with no issues.
New performance cars don't use Mobil 1 15w-50...And is "not fill approved" by GM, Ford, Chrysler, MB, BMW, VW, or any other ACEA auto builder.

Application Chart... In English
http://www.mobiloil.com/USA-English/...duct_Guide.pdf

Last edited by Back4More; 03-18-2008 at 01:18 AM.
Back4More is offline  
Reply With Quote
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
t500hps
General Boating Discussion
5
07-17-2012 10:23 AM
vandeano
General Q & A
14
04-05-2006 12:11 AM
PatriYacht
General Q & A
3
09-13-2005 11:06 AM
BadDog
General Q & A
13
02-18-2003 09:12 PM



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 05:31 AM.


Copyright 2011 OffShoreOnly. All rights reserved.