I found this article on how Mobil 1 synthetic oil was tested in a BMW 325i. Mobil had the car running for 4 years on a treadmill, 24 hours a day until it reached 1 million miles. At the end, they took the engine apart and found that the measurements were identical to the manufacturer's original specifications. This is what I call longevity...
Company tests synthetic oil by driving car a million miles
This column was published on May 23 in the Herald-Journal.
Author: Kenn Peters
Imagine driving your car or truck for 1 million miles. Why, it would take forever. And then you'd have to be driving around the clock.
Mobil, the oil and gas company, did it when it was developing Mobil 1. It took four years to cover the miles.
Bill Maxwell, an environmental engineer and head of product development for the Mobil Technology Co., in Paulsboro, N.J., said the company did high-mileage tests of Mobil 1 synthetic oil during 1989 and 1990 in two Oldsmobiles with General Motors' since discontinued Quad 4 engine.
The cars were put on a treadmill and run for 200,000 miles. The oil in one car was changed every 7,500 miles and in the second car every 15,000 miles, Maxwell said. At the end of the 200,000 miles, the car's engines were torn down and found to be in perfect condition.
"It was astounding. The engines looked like they were virtually new," he said. Mobil learned from that test that even people who break the rules by not changing their oil on schedule will be forgiven by the oil.
But Mobil wasn't satisfied. So the company bought a BMW 325i with a 2.5-liter in-line 6-cylinder engine. The company decided to go for broke and run the BMW 1 million miles.
The BMW spent four years on the treadmill, 24 hours a day, mostly at 85 miles an hour, but with varied speeds, too, down as low as 45 miles an hour to simulate everyday driving.
Mobil followed BMW's recommended service schedule. Along the way it changed the fan belt and hoses and did other hardware maintenance. It religiously changed the oil.
AT THE END of the road, when the engine was taken apart, Mobil's engineers discovered that the wear measurements were the same as the manufacturer's specifications.
Today that synthetic oil is commonplace not only for vehicles on the road, but those on the racetrack, too.
The 5W30-weight Mobil 1 is used almost exclusively by racing teams on the NASCAR circuit, and most Indy-type cars use 15W50-weight Mobil 1, Maxwell said. Military fighter planes have been using synthetic oil for a long time, he said.
One of the basic elements of synthetic oil is a so-called synthetic fluid, the development of which evolved over the years until it became obvious it could provide lubricating benefits not obtainable with mineral oils, Maxwell said.
ONE OF THE oil's toughest tests was in heavy equipment that does duty on the Alaskan pipeline. The oil must perform in temperatures that dip to 40 below zero, Maxwell said.
Oil companies are constantly being pushed to develop new products to meet the demands of engines that run hotter, Maxwell said.
"We want higher fuel efficiency and that means cars will be much more streamlined, hood areas will get smaller, and engines will have to be smaller," he said. "That will result in less air flow."
What all this adds up to is hotter running engines and more demands than ever on engine oil.
Incidentally, have you ever noticed how often manufacturers claim products have been used for years in Europe before they come to the United States? Well, that's the case with Mobil synthetic oil. Maxwell said it has been used in Europe for over two decades.
pretty impressive, i'll stay with synthetic in my 2.5L sixer
AMG can't build an NA engine that can compete with M engines, so they stick in a supercharger and say their cars are faster. BMW could simply do the same, but they don't out of principle.</span>
That test doesnt exactly make much sense in my mind.... yes... you can run that sucker for 1 million miles... change the oil... all the other stuff... but how many people actually go through the life of the car.. with no missed shifts... or not fly through the gears, red line them... and push the car.. ?... exactly how much does a loss of lateral suspension components... mainly engine mounts... play in the engines performance.... how much do regular bumps play in the operation... stop and go... traffic... ect...
Just a little to think about when you speak of Mobil 1....
I have nothing against them... that company makes some really good stuff... I have found Red Line Oil.... to be my favorite... but I've done a lot of research too....
Its your car... do some research if you really care... if not.. go to the store... find a smart guy walking around.. and ask..
I recently switched to mobil 1 synthetic, at 87,000 miles. It's been great so far, i've taken it 3,000 miles with no problems, and that's just on the first switch. A change is due, then it should be good for another 7,000 miles.
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