Originally Posted By: Joshua_Skinner
Originally Posted By: HTSS_TR
Amsoil Signature Series at similar price of Mobil 1 is an easy choice.
And you support this assertion how? Are you meaning that Amsoil is clearly superior? Evidence please.
The availability of Mobil 1 is clearly superior and it does an outstanding job. Where is a store can I walk into and buy 5 quarts of AMSOIL Signature Series for $24? $28? I can get my Mobil 1 5w30 and 0W-40 for $24/5 qts at Walmart or at a place where the employees and suppliers are treated better for $28.
For wear the 2 oils below are nearly identical. For cost and availability the Mobil 1 wins hands down. You would have to run the Amsoil twice as long to get the cost/mile to be similar.
11. 5W30 Mobil 1, API SN synthetic = 105,875 psi
zinc = 801 ppm
phosphorus = 842 ppm
moly = 112 ppm
calcium = 799 ppm
TBN = 7.5
13. 0W30 Amsoil Signature Series 25,000 miles, API SN synthetic = 105,008 psi
zinc = 824 ppm
phosphorus = 960 ppm
moly = 161 ppm
calcium = 3,354 ppm
TBN = 11.4
The question posted Australian poster, he said that he can buy AMSOIL Signature Series for similar price with Mobil 1 on sale in Australia.
Many UOA showed that AMSOIL Signature Series at more than 10k miles had excellent retaining TBN and low wear metals. Also, Amsoil warranty change interval up to 25k miles or 1 year(was unlimited time).
These tells me Amsoil is better than Mobil 1, at least no worse than Mobil 1 Extended Performance, especially for someone who drive 20-25k miles a year, with good oil filter he/she can do yearly oil change with AMSOIL Signature Series, instead of twice a year with Mobil 1.
This is not applicable in US because Mobil 1 can easily obtain at Walmart for less than $25-26 5-qt jug, a couple dollars more can get EP. AMSOIL Signature Series is not less than $8-9/qt after tax and shipping.
No, I never used Amsoil of any type but I would if I can get AMSOIL Signature Series for similar price of Mobil 1.