Which oil is better??

   / Which oil is better?? #1  

Williy

Elite Member
Joined
Apr 26, 2020
Messages
2,980
Location
Texas
Tractor
Yanmar YT 235C Yannar YRC 60 rotary cutter, Yanmar RT72 rotary tiller B75 Backhoe & bucket & thumb, LS land grader


willy
 
   / Which oil is better?? #3  

Per 540 Rat rankings:

2) 5W30 Amsoil Signature Series 100% Synthetic, has no certification labels, but claims it can be used in applications that require GM dexos1-Gen2, ILSAC GF-6A, API SP = 141,851 psi
This oil was tested in Spring 2021.
zinc = TBD
phos = TBD
moly = TBD

148) 5W30 Royal Purple API SN synthetic = 84,009 psi
zinc = 942 ppm
phos = 817 ppm
moly = 0 ppm
 
   / Which oil is better?? #4  
I've seen many different tests over the the last 20-30 years and Amsoil usually comes out on top and if not, it's second. No other oil ever tests that well across a battery of tests.

It's why when someone asks what's the best oil for xxxx, I have no hesitation saying Amsoil.

I have used Amsoil for 20-30 years in everything, 2-stroke oil (Actually passed the tests at 200:1 or 300:1 ratio but the engineers decided no one would believe them so they just called it 100:1), Diesel and Gasoline fuel treatments, greases and obviously oils and filters for Jeeps, cars, Diesel pickups, multiple ATV's, Zero Turn mowers, Push mower, Pressure Washer, Edger.
 
   / Which oil is better?? #6  
Wal-mart oil has always worked for me. Never an issue. Engines always work. I take the savings, invest them, and come out ahead in the end.....
 
   / Which oil is better?? #8  
Wal-mart oil has always worked for me. Never an issue. Engines always work. I take the savings, invest them, and come out ahead in the end.....

Not necessarily. Amsoil synthetic can be ran a lot longer than the non-synthetic oils and even longer than many other synthetic brands.

"Guaranteed protection for up to 25,000 miles or 1 year" for many Amsoil motor oils.

Amsoil doesn't cost much more per quart/gallon if you're a Dealer or Preferred Customer (PC) so actually over 1 year you can save more money using Amsoil, even factoring the cost to be a PC.

Then there's the added benefit of knowing you have the best protection available for you engines if you use them in high temperatures or very cold climates.
 
   / Which oil is better??
  • Thread Starter
#9  
coobie Yanmar 15w40 is not for the YT2 or YT3 tractors
Prune juice is the best! If you don't believe me you can
even drink it its so GOOD!

willy
 
   / Which oil is better?? #10  
coobie Yanmar 15w40 is not for the YT2 or YT3 tractors
Prune juice is the best! If you don't believe me you can
even drink it its so GOOD!

willy
I will stick with Rotella syn. oil and pass on the juice.:D
 
 
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