Originally Posted By: Pablo
Originally Posted By: jim3029
I have a 2005 Century with 14L 60 series Detroit,just over 900,000 miles. It is an egr engine but it is turned off. I was going to change to synthetic for extended oil changes and hoping for better mpg. I'm told some of the drivers here in WI are using the Amsoil series 3000 5w-30 I believe with bypass filter. I don't use any oil between 20,000 mile oil change now and my mechanic says if I change to synthetic I may have leaks.
Is leaking a real problem? If not does anyone have a recommendation about the Amsoil series 3000 5w-30? Anyone seeing increase in mpg or other benifits?
Thanks for asking about Amsoil. It's always interesting to see others who have never actually used Amsoil instantly recommend other products.
First I would not recommend other viscosities straight away or perhaps start with the 5W-30 HDD during the winter only. My general recommendation is a couple extended runs with the 15W-40 AME and see what the UOA is telling you.
Unless you already have leaks, synthetic oil will not cause leaks.
Anyway please contact me for an Amsoil Commercial Account. Thanks!
What your post should have said.
Originally Posted By: jim3029
I have a 2005 Century with 14L 60 series Detroit,just over 900,000 miles. It is an egr engine but it is turned off. I was going to change to synthetic for extended oil changes and hoping for better mpg. I'm told some of the drivers here in WI are using the Amsoil series 3000 5w-30 I believe with bypass filter. I don't use any oil between 20,000 mile oil change now and my mechanic says if I change to synthetic I may have leaks.
Is leaking a real problem? If not does anyone have a recommendation about the Amsoil series 3000 5w-30? Anyone seeing increase in mpg or other benifits?
Thanks for asking about Amsoil. It's always interesting to see others who have never actually used Amsoil instantly recommend other products.
First I would not recommend other viscosities straight away or perhaps start with the 5W-30 HDD during the winter only. My general recommendation is a couple extended runs with the 15W-40 AME and see what the UOA is telling you.
Unless you already have leaks, synthetic oil will not cause leaks.
What your post should have said.