Marine Lubrication
11-22-2006, 12:30 PM
#961
Gold Member
Gold Member
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes
on
0 Posts
Re: Marine Lubrication
Originally Posted by minxguy
API base stock categories
Group I base stocks contain less than 90% saturates and/or greater than 0.03% sulfur, and have a viscosity index greater than or equal to 80 and less than 120 using spefic test methods.
Group II base stocks contain greater than or equal to 90
% saturates, and less than or equal to 0.03% sulfer. They have a viscosity index greater than or equal to 80 and less than 120 using the same test methods for each catagory.
Group III base stocks contain greater than or equal to 90% saturates, and less than or equal to 0.03% sulfer, and have a viscosity index greater than or equal to 120...
Group IV base stockes are PAO's
Group V base stocks include all others base stocks not included in Group I,II,III,IV
I am sure this does not help, but these are the classifications.
Ken
Group I base stocks contain less than 90% saturates and/or greater than 0.03% sulfur, and have a viscosity index greater than or equal to 80 and less than 120 using spefic test methods.
Group II base stocks contain greater than or equal to 90
% saturates, and less than or equal to 0.03% sulfer. They have a viscosity index greater than or equal to 80 and less than 120 using the same test methods for each catagory.
Group III base stocks contain greater than or equal to 90% saturates, and less than or equal to 0.03% sulfer, and have a viscosity index greater than or equal to 120...
Group IV base stockes are PAO's
Group V base stocks include all others base stocks not included in Group I,II,III,IV
I am sure this does not help, but these are the classifications.
Ken
Actually this is exactly what I am looking for. Also got off my rear and did some searching and found ........ http://www.chevron.com/products/prod...f4_faq.shtmlnd ........which also helped me to better understand the 'Group' thing.
Now please help me understand the 'Synthetic' thing. Is it purely a marketing term with no true universal definition in fact?
11-22-2006, 12:36 PM
#962
Gold Member
Gold Member
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes
on
0 Posts
Re: Marine Lubrication
Originally Posted by Rage
Thanks Ken.
Actually this is exactly what I am looking for. Also got off my rear and did some searching and found ........ http://www.chevron.com/products/prod...f4_faq.shtmlnd ........which also helped me to better understand the 'Group' thing.
Now please help me understand the 'Synthetic' thing. Is it purely a marketing term with no true universal definition in fact?
Actually this is exactly what I am looking for. Also got off my rear and did some searching and found ........ http://www.chevron.com/products/prod...f4_faq.shtmlnd ........which also helped me to better understand the 'Group' thing.
Now please help me understand the 'Synthetic' thing. Is it purely a marketing term with no true universal definition in fact?
http://www.chevron.com/products/prod.../gf4_faq.shtml
11-22-2006, 12:40 PM
#963
Gold Member
Gold Member
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes
on
0 Posts
Re: Marine Lubrication
Originally Posted by Rage
Sorry, the posting seemed to cut out some of the URL. Trying again.
http://www.chevron.com/products/prod.../gf4_faq.shtml
http://www.chevron.com/products/prod.../gf4_faq.shtml
www . chevron . com / products / prodserv / BaseOils / gf4 _ faq . shtml
11-22-2006, 01:49 PM
#964
Registered
Re: Marine Lubrication
Originally Posted by Rage
Thanks Ken.
Actually this is exactly what I am looking for. Also got off my rear and did some searching and found ........ http://www.chevron.com/products/prod...f4_faq.shtmlnd ........which also helped me to better understand the 'Group' thing.
Now please help me understand the 'Synthetic' thing. Is it purely a marketing term with no true universal definition in fact?
Actually this is exactly what I am looking for. Also got off my rear and did some searching and found ........ http://www.chevron.com/products/prod...f4_faq.shtmlnd ........which also helped me to better understand the 'Group' thing.
Now please help me understand the 'Synthetic' thing. Is it purely a marketing term with no true universal definition in fact?
Synthetic lubricant-lubricating fluid made by chemically reacting materials of a specific chemical composition to produce a compound with planned and predictible properties; the resulting basestockmay be supplemented with additives to improve specific properties.
Many synthetic lubricants, also called synlubes, are derived wholly or primarily from petrochemicals; other synlube raw materials are derived from coal and oil shale, or are lipochemicals (from animal and vegtable oils). Synthetic lubricants may be superior to petroleum oils in specific performance areas. Many exhibit higher viscosity index and thermal stability, and low volatility (which reduces oil consmption). Most synlubes offer longer service life and in some cases, better biodegradeability than conventional lubes.
PAO's are versatile lubricants with low pour points, and excellent thermal and oxidation stability; they have good compatibility with petroleum lubricants and most seals used with petroleum lubricants.
Did this help?
Ken
11-22-2006, 02:11 PM
#965
Gold Member
Gold Member
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes
on
0 Posts
Re: Marine Lubrication
Originally Posted by minxguy
Rage, here goes..............
Synthetic lubricant-lubricating fluid made by chemically reacting materials of a specific chemical composition to produce a compound with planned and predictible properties; the resulting basestockmay be supplemented with additives to improve specific properties.
Many synthetic lubricants, also called synlubes, are derived wholly or primarily from petrochemicals; other synlube raw materials are derived from coal and oil shale, or are lipochemicals (from animal and vegtable oils). Synthetic lubricants may be superior to petroleum oils in specific performance areas. Many exhibit higher viscosity index and thermal stability, and low volatility (which reduces oil consmption). Most synlubes offer longer service life and in some cases, better biodegradeability than conventional lubes.
PAO's are versatile lubricants with low pour points, and excellent thermal and oxidation stability; they have good compatibility with petroleum lubricants and most seals used with petroleum lubricants.
Did this help?
Ken
Synthetic lubricant-lubricating fluid made by chemically reacting materials of a specific chemical composition to produce a compound with planned and predictible properties; the resulting basestockmay be supplemented with additives to improve specific properties.
Many synthetic lubricants, also called synlubes, are derived wholly or primarily from petrochemicals; other synlube raw materials are derived from coal and oil shale, or are lipochemicals (from animal and vegtable oils). Synthetic lubricants may be superior to petroleum oils in specific performance areas. Many exhibit higher viscosity index and thermal stability, and low volatility (which reduces oil consmption). Most synlubes offer longer service life and in some cases, better biodegradeability than conventional lubes.
PAO's are versatile lubricants with low pour points, and excellent thermal and oxidation stability; they have good compatibility with petroleum lubricants and most seals used with petroleum lubricants.
Did this help?
Ken
11-22-2006, 05:41 PM
#967
Gold Member
Gold Member
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes
on
0 Posts
Re: Marine Lubrication
Originally Posted by Hydrocruiser
FYI..I learned today that most all $8-9.00 synthetic oils are still 100% GRP IV. PAO's.
11-23-2006, 09:20 AM
#968
Gold Member
Gold Member
Join Date: Sep 2005
Location: Missouri
Posts: 1,987
Likes: 0
Received 0 Likes
on
0 Posts
Re: Marine Lubrication
Originally Posted by Hydrocruiser
Good observation.
The reason the universal average is higher is because increased detergency specific to the product frees up sludge and metal particles thereby increasing "wear metal content" from a long time back.
We have known this for a while.
The reason the universal average is higher is because increased detergency specific to the product frees up sludge and metal particles thereby increasing "wear metal content" from a long time back.
We have known this for a while.
11-23-2006, 04:40 PM
#969
Gold Member
Gold MemberThread Starter
Re: Marine Lubrication
Originally Posted by Rage
Can you list the ones that are confirmed 100% GRP IV?
I am good but not that good.
...and even if I could it would not necessarilly mean they were better beacuse there are many factors that go into making a good oil.
Last edited by Hydrocruiser; 11-23-2006 at 04:52 PM.
11-23-2006, 04:41 PM
#970
Gold Member
Gold MemberThread Starter
Re: Marine Lubrication
Originally Posted by Rage
Should I then expect to see a significant reduction in wear debris levels when I change the Mobil 1 20W50 that is in the engine now after an additional season of another 80 - 90 hours?
