View Poll Results: Favorite Synthetic Engine Oil?
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Your Favorite Synthetic Engine Oil?
Registered User
Joined: Apr 2002
Posts: 1,749
Likes: 4
From: Cypress, TX
Originally Posted by topless
A few years ago all the R.P. oils were full synthetics. Then they changed the additive package and decided to offset the expense by using a mineral/synthetic blend for the base oil.
Rod,
We do not currently market a 5W40 instead choosing to market a full synthetic 15W40 that is actually API Licensed, unlike most of the products sold by Amsoil (the only company listing any 4 ball wear tests - which is not a recognized engine oil test - it was designed by the ASTM to test performance of batch to batch quality of the exact same formulation of oils. ASTM reports that there is no correlation between 4 Ball wear numbers of oils with differing formulations.
Here is a link to our API Licensed oils http://eolcs.api.org/DisplayLicense...?LicenseNo=0777
Here is a link to search for any API Licensed oil - suggest that you search Amsoil - you'll may be surprised that you do not see the Series 2000 and Series 3000 oils that they promote the hardest for diesel applications.
http://eolcs.api.org/
On our website, we list product value for our 15W40 which has an excellent pour point of -44 F (Mobil Delvac 1 5W40 has a pour point of -45 F) so the difference between RP's 15W40 and 5W40 is negligible.
Sulfated ash content, since it is an API Licensed oil has to fall within the API CI-4+ limits. Sulfated Ash content is not a performance spec - and should not be a determining factor in choosing an oil. (although those not in the industry grasp at things to compare and wrongly interpret this physical parameter).
The RP comes in at 1.2% - 1.3% versus 1.35% for Delvac 1. I've attached a viscosity comparison of RP 15W40 to Mobil Delvac 1 5W40 and there is not significant departure until -20 F or so - and there are very few places in North America that actually experience significant time where ambient temperatures are below -20 F for any length of time.
For those of you north of the border in Canada and Alaska, we do offer a 10W30 Diesel rated API CI-4 product for low temperature operation.
Thanks for your email.'
Cheers,
PS you can find the product data sheet under industrial products on our website.
http://www.royalpurple.com/prodsi/rpmoi.html
David Canitz
Tech Services Manager
Royal Purple Ltd
1 Royal Purple Lane
Porter, TX 77365
We do not currently market a 5W40 instead choosing to market a full synthetic 15W40 that is actually API Licensed, unlike most of the products sold by Amsoil (the only company listing any 4 ball wear tests - which is not a recognized engine oil test - it was designed by the ASTM to test performance of batch to batch quality of the exact same formulation of oils. ASTM reports that there is no correlation between 4 Ball wear numbers of oils with differing formulations.
Here is a link to our API Licensed oils http://eolcs.api.org/DisplayLicense...?LicenseNo=0777
Here is a link to search for any API Licensed oil - suggest that you search Amsoil - you'll may be surprised that you do not see the Series 2000 and Series 3000 oils that they promote the hardest for diesel applications.
http://eolcs.api.org/
On our website, we list product value for our 15W40 which has an excellent pour point of -44 F (Mobil Delvac 1 5W40 has a pour point of -45 F) so the difference between RP's 15W40 and 5W40 is negligible.
Sulfated ash content, since it is an API Licensed oil has to fall within the API CI-4+ limits. Sulfated Ash content is not a performance spec - and should not be a determining factor in choosing an oil. (although those not in the industry grasp at things to compare and wrongly interpret this physical parameter).
The RP comes in at 1.2% - 1.3% versus 1.35% for Delvac 1. I've attached a viscosity comparison of RP 15W40 to Mobil Delvac 1 5W40 and there is not significant departure until -20 F or so - and there are very few places in North America that actually experience significant time where ambient temperatures are below -20 F for any length of time.
For those of you north of the border in Canada and Alaska, we do offer a 10W30 Diesel rated API CI-4 product for low temperature operation.
Thanks for your email.'
Cheers,
PS you can find the product data sheet under industrial products on our website.
http://www.royalpurple.com/prodsi/rpmoi.html
David Canitz
Tech Services Manager
Royal Purple Ltd
1 Royal Purple Lane
Porter, TX 77365
Rusty
Registered User
Joined: Feb 2005
Posts: 337
Likes: 0
From: Glendale(Phoenix),AZ.
ckennedy,
Over on BITOG, the Schaeffer's 7000 (15X40) & 9000 (5X40) are very well thought of. UOA's (used oil analysis) have shown that it has a very strong additive package with an especially strong HTHS (high temperature/high shear) quality.
The Powerstroke guys seem to really like it because of the high shear quality. Their fuel injection systems are very hard on engine oil & have a tendency to shear the oil prematurely. Some have said that they can tell when they need an oil change because there will be a lack of power because of the sheared oil. When the oil is changed, the power comes back to normal. Since the Cummins engines are pretty easy on oils, the Schaeffer's products will probably perform very well.
I believe the Schaeffer's products are not Group IV synthetics, especially the 7000, which, I believe is a blend of dino & synthetic (if memory serves me right). There was an explanation given which basically said that they were taking the best quality's from the different oils & blending them together to create a very strong, robust engine oil. I'm not an expert in these matters but, that's how I understood the explanation.
Schaeffer's products seem to be very popular in the Midwest, probably because they are manufactured in the St. Louis area. There prices seem to be reasonable, also.
The bottom line is that users of Schaeffer's oils are VERY happy with its performance.
I've also read where Mobil 1 UOA's showed high metal wear. However, others have gotten great results from its use.
Joe F.(Buffalo)
Over on BITOG, the Schaeffer's 7000 (15X40) & 9000 (5X40) are very well thought of. UOA's (used oil analysis) have shown that it has a very strong additive package with an especially strong HTHS (high temperature/high shear) quality.
The Powerstroke guys seem to really like it because of the high shear quality. Their fuel injection systems are very hard on engine oil & have a tendency to shear the oil prematurely. Some have said that they can tell when they need an oil change because there will be a lack of power because of the sheared oil. When the oil is changed, the power comes back to normal. Since the Cummins engines are pretty easy on oils, the Schaeffer's products will probably perform very well.
I believe the Schaeffer's products are not Group IV synthetics, especially the 7000, which, I believe is a blend of dino & synthetic (if memory serves me right). There was an explanation given which basically said that they were taking the best quality's from the different oils & blending them together to create a very strong, robust engine oil. I'm not an expert in these matters but, that's how I understood the explanation.
Schaeffer's products seem to be very popular in the Midwest, probably because they are manufactured in the St. Louis area. There prices seem to be reasonable, also.
The bottom line is that users of Schaeffer's oils are VERY happy with its performance.
I've also read where Mobil 1 UOA's showed high metal wear. However, others have gotten great results from its use.
Joe F.(Buffalo)
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