Yes, the number on the pump is the average of the research and motor methods, but there are other numbers that average out to 87. Research doesn't HAVE to be 93 and motor doesn't HAVE to be 81 in order for R+M/2 to be 87.
Research 91 + Motor 83 = R+M/2 87.
Research 89 + Motor 85 = R+M/2 87.
IIRC, the research and motor methods are "generally" 10 points apart, but not always, and surely the testing technology is improving so the results are getting closer and closer to each other. Octane is money, and the more accurate the testing the more profitable it is for the oil companies.
Plus you also just know those oil companies are cheating the octane rating a little. What's saying the 87 you buy isn't 86 or even 85? "Whoops, guess our blending system is a little out of calibration."
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Talk of the Town: Repairin a Gas Tank - by Staff. This interesting discussion is from the Tool Talk Discussion Forum. Remember that safety is your first priority - make sure you know what you are doing before attempting a potentially dangerous activity!
... [Read Article]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
