Like Tree0Likes

Oil Weight with 130 degrees thermostat

Reply
Old 03-18-2008, 10:13 PM
  #21
Registered
 
Join Date: Jan 2004
Location: San Diego, California
Posts: 2,777
Wink What the Hell does oil have to do with IT?

I would say here that your water temp and oil temps are in a problem range.
1. You should get oil temps up near 220 degrees to get the water and condensation out of the oil. Oil temps at 170-180 degrees will not do the job and condensation in the motor can be a problem.
2. In normally asspirated motors with iron heads the best combustion burn on todays pump gas fuel occurs around 160 degrees. To much colder than that and the most efficient burn and standard marine engine clearances will suffer.
3. Get 140-160 degree stat in that motor. Keep your oil temps on moderate to heavy running at 210-230 degrees and use a good 20-50w or 25-40w synthetic or conventional quality oil and you should be fine.
Keep an eye on the oil , Keep the water and dirt out of it and change it regularly, Oil is Cheap compared to engine work!
To many high performance boaters get hung up on the oil
debate and don't spend enough time learning the important things about why good motors run well and last!
Tyler builds great motors and he knows how to set them up with the proper clearances, machining, parts and assembly. His oil reccomendations should be followed for his motor.
Most problems that show up in marine high performance engines arise because the motor was not done right to begin with, inferior or incorect parts or clearances and poor assembly techniques! Very rarely does the oil enter into the severe wear or damage issues unless its not serviced properly, overheated or underheated, grossly wrong viscosities used and low oil levels or oil control issues arise.

Best Regards,
Ray @ Raylar
Raylar is offline  
Reply With Quote
Old 03-18-2008, 10:23 PM
  #22
Charter Member # 55
Charter Member
 
Griff's Avatar
 
Join Date: Oct 2000
Location: Omaha
My Boats: .......32............. ...............Active Thunder....
Posts: 15,743
Default

I agree the oil temps only getting to 170-180 could lead to problems. The biggest question is where is the temp sender????
If you are not getting any cloudy oil, my bet is that the sender is located after the oil has been cooled.
Best way to find out actual max oil temp is a sender in the pan. If thats not possible, shoot an Infrared thermometer at the oil pan after a good run and compare the temp to your gauge.
Griff is offline  
Reply With Quote
Old 03-19-2008, 04:47 PM
  #23
Gold Member
Gold Member
Thread Starter
 
Join Date: Feb 2006
Location: Cicero, NY
My Boats: Wellcraft Excalibur 26
Posts: 162
Default

Quote:
To many high performance boaters get hung up on the oil
debate and don't spend enough time learning the important things about why good motors run well and last!
Tyler builds great motors and he knows how to set them up with the proper clearances, machining, parts and assembly. His oil reccomendations should be followed for his motor.
Most problems that show up in marine high performance engines arise because the motor was not done right to begin with, inferior or incorect parts or clearances and poor assembly techniques! Very rarely does the oil enter into the severe wear or damage issues unless its not serviced properly, overheated or underheated, grossly wrong viscosities used and low oil levels or oil control issues arise.
Tyler built the Motor with the 130 t-stat. It is not some thing I added after the fact. I did call him and he say Kendal 20/40 is what he would use.

I check the oil almost everyweekend when I go out, its never been cloudy.
JBoat is offline  
Reply With Quote
Old 03-23-2008, 12:49 AM
  #24
Registered
 
Back4More's Avatar
 
Join Date: Feb 2002
Location: Lake Michigan
My Boats: 353 Fastech
Posts: 6,624
Default

Quote:
Originally Posted by 07DominatorSS View Post
No, GM does factory fill all their Cadillacs, Corvettes and SS models with Mobil 1 0w-30. So does Chrysler on all SRT models and so does Roush with all his Mustangs. So, not sure where you get your information. If you're talking specifically about 15w-50, then possibly, but they do factory fill with Mobil 1. However, I would still use AMSOIL in those motors, Series 2000 Racing 20w-50.
I know they use Mobil 1, I've owned a Vette and Cadi but they do not use 15w-50.
Back4More is offline  
Reply With Quote
Old 03-23-2008, 08:18 AM
  #25
Charter Member #1055/Moderator
Charter Member
Trade Score: (1)
 
GO4BROKE's Avatar
 
Join Date: Feb 2001
Location: CNY
My Boats: Sonic 386
Posts: 4,579
Default

Never heard of 0w30. Gm recommends 5w30 for the cars that use mobil 1. I use it in my z06 and dually. 15w50 for the boat, been fine with roller lifters since 1997 on my 31ss and currently in my 386 with 496's.
I have heard the roller lifter sliding and wearing thing. I don't buy it. If there is not enough friction to turn a roller, it most certianly won't wear a flat spot.
__________________
[img][/img]

Last edited by GO4BROKE; 03-23-2008 at 08:19 AM. Reason: fat fingers
GO4BROKE is offline  
Reply With Quote
Old 03-23-2008, 09:26 AM
  #26
Registered
 
Back4More's Avatar
 
Join Date: Feb 2002
Location: Lake Michigan
My Boats: 353 Fastech
Posts: 6,624
Default

Use what you like...I have seen the results.
Back4More is offline  
Reply With Quote
Old 03-23-2008, 10:10 AM
  #27
Registered
 
mr_velocity's Avatar
 
Join Date: Apr 2002
Posts: 3,084
Default

Quote:
Originally Posted by GO4BROKE View Post
Never heard of 0w30. Gm recommends 5w30 for the cars that use mobil 1. I use it in my z06 and dually. 15w50 for the boat, been fine with roller lifters since 1997 on my 31ss and currently in my 386 with 496's.
I have heard the roller lifter sliding and wearing thing. I don't buy it. If there is not enough friction to turn a roller, it most certianly won't wear a flat spot.

Toyota recommends 0w-20 in their 5.7L truck engines.

As for oil in the boat, I run cold water temps and a huge 2 pass oil filter. I measure my oil temp coming out of the pump before the filter. With Mobil 1 temps are 240 after long wot runs (more than 15 minutes). With Redline temps are down 15 - 20 degrees.
mr_velocity is offline  
Reply With Quote
Old 03-23-2008, 10:19 AM
  #28
Registered
 
berco's Avatar
 
Join Date: Sep 2002
Location: malvern,Pa
My Boats: sonic
Posts: 56
Default

I have a 96 sonic 31ss with slightly modified 454 mag carb motor with cross overs and run no thermos. My engine temps never get above 130-140 but my oil temps get 220-230 on average and running hard 260 and always run mobil 1 15-50,last season i ran 20-50 and had same results with a little more oil presure. what i like best about mobil 1 is a more constant oil presure all the time
berco is offline  
Reply With Quote
Old 03-23-2008, 08:56 PM
  #29
Charter Member #1055/Moderator
Charter Member
Trade Score: (1)
 
GO4BROKE's Avatar
 
Join Date: Feb 2001
Location: CNY
My Boats: Sonic 386
Posts: 4,579
Default

Mobil 1 does seem to keep a consistant pressure vs conventional.

Mr Velocity- 15-20 degree drop is impressive. Were both the same viscosity? Did the oil pressure change?
__________________
[img][/img]
GO4BROKE 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 10:34 PM.


Copyright 2011 OffShoreOnly. All rights reserved.