Government-Industry Consortium Drilling Expedition Confirms Gas Hydrates at High Saturations in GOM
Toyota Seeks to Boost NiMH Battery Production Capacity 10%

Michelin Says New Energy Saver Tire 8% More Fuel Efficient Than Comparable Tires

The new Michelin Energy Saver A/S tire, which went on-sale this past week, is one of the first all-season tires to combine low levels of rolling resistance with superior levels of wet braking and all-season performance.

Michelin Energy Saver Construction technology keeps the tire cooler, helping the engine to improve its fuel-efficiency. It is up to 8% more fuel-efficient than other tires in its class.

Michelin Comfort Control Technology, engineered into the tire uses computer-optimized design and precision manufacturing to offer greatly reduced vibrations and road noise to keep the vehicle quiet, while a silica-based rubber compound provides all-season traction. An energy saving contact patch provides leading wear life.

The Michelin Energy Saver A/S tire is now available in four sizes that include popular mainstream and hybrid vehicles: P215/60R16; P195/65R15; P195/60R15 and P185/65R15.



This is good.
All these things add up.
And I applaud their truth in advertising, when
they say "up to 8% more fuel-efficient than other tires in its class."
But there are two qualifiers in that claim.


You could do a split rim and hard rubber tire for even lower roll resistance. Let the suspension do the work.

Fred H

"Michelin says .... It is UP TO 8% more fuel-efficient than [CERTAIN] OTHER tires in its class."

That's the problem.

I want exact values for the coefficient of rolling resistance at realistic load, temperature, and inflation pressure for my car's exact tire size and specs.

There's apparently no standardized test that measures this under typical operating conditions.

So it's impossible for consumers to make an exact comparison when shopping for tires.

Every few years, I spend many hours searching through many different tire tests by auto magazines and consumer guides. Usually there are no tests for my particular size and spec, so I have to hope that tests of similar sizes will let me correctly make an inference for my size, which of course is not necessarily correct. Also, every tester has their own methods, so I can only compare within each test.

What we need is a standardized test under realistic typical real world driving conditions similar to the new revised EPA mileage test cycles. And we need to have standardized test results published for every single model, size, and specification. Only then will it be possible for consumers to directly and accurately compare the rolling resistance of tires.

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Your Information

(Name is required. Email address will not be displayed with the comment.)