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Engine Wear

Amsoil Synthetic Oils Outperform All Others

Putting AMSOIL to the test using New York City Taxi Cabs

It was 1984. Lubrizol, the prestigious specialty chemical supplier, launched an ambitious testing program for its additives and formulations. It involved finding a fleet whose normal use exposed the cars to a wide range of stress. One by one, the existing engines would be removed, and replaced by factory new engines. Completing the tests, the fleet's new engines would be removed and disassembled for inspection.

The fleet chosen was made up of New York City taxicabs. Here was a pool of automobiles subject to long periods of idling, strenuous bouts with traffic, and an occasional "follow that car!". Or "get me to the airport no matter what," accompanied by the full range of weather and temperature variables. A classic choice in field testing.

But there were other factors the testers couldn't anticipate. Once the tests began, an astonishing rate of smashed and disabled cabs emerged. The test fleet seemed to ricochet through the New York streets like billiard balls. Added to this was the Chevrolet 229 CID V-6, an engine in its last product year and remembered foundly by mechanics everywhere for its ability to produce income.

Like all field tests, real-life testing would provide something the laboratory never could. Unpredictability.

Welding The Plugs
The AMSOIL test involved sixteen cabs divided into four groups of four cabs each. The first four were controls. Using the same petroleum oil and filters already in use by the fleet, they would follow the existing fleet custom of changing oil every 3,000 miles. They are identified as "Group A".

"Group B" used AMSOIL 10W-40 Synthetic Motor Oil with an AMSOIL Oil Filter. For Group B, the oil change interval was doubled to 6,000 miles.

Using the same AMSOIL products as "Group B", the third division of cars - "Group C" - quadrupled the control interval, changing oil at 12,000 miles.

[See figures below]

Group A, Unit 100: Control, Conventional Petroleum oil, 3,000-mile drain interval
Group B, Unit 076: AMSOIL, 6,000-mile drain interval
Group C, Unit 070: AMSOIL, 12,000-mile drain interval
Group D, Unit 074: AMSOIL, No oil changes, 60,000-miles

But "Group D" ran the ultimate test. Using AMSOIL 10W-40 Synthetic Motor Oil, an AMSOILS Oil Filter and AMSOIL By-Pass Filter (changing the filter at 12,000-mile intervals), the taxis were "filled for life". No oil changes at all. In fact, the drain plugs were welded to the pan.

The life of the test was 60,000 miles. Overall, the AMSOIL test fleet accumulated nearly three-quarter million miles.

3000 mile drain interval using conventional petrolium oil

6000 mile drain interval using amsoil 10W40 synthetic oil

12000 mile drain interval using Amsoil 10W40 synthetic oil

No oil changes using Amsoil 10W40 Synthetic oil and oil filter bypass kit

Inside The Engines

Engine inspection to see results of Amsoil Synthetic and conventional petrolium oil With the tests completed and the engines removed and disassembled, there was no visible evidence that an AMSOIL-filled engine without an oil change in 60,000 miles was worse off than a cab with 20 petroleum oil changes. A systematic analysis of sludge, varnish, rust, and wear showed little variation between taxis with AMSOIL products and those without, even though AMSOIL oil change intevals ranged from double to twenty times the petroleum-filled engines.

In its written conclusions, the testing facility responsible for compiling the test data made this observation:

"The data presented in this report indicates that AMSOIL synthetic SAE 10W-40 passenger car motor oil formulation as desribed here provided protection of test engines from excessive wear and deposit formation far beyond the normal 3,000-mile change interval."

In a separate letter to AMSOIL's Technical Director, the testing facility diplomatically touched on the problems caused by using the Chevrolet engine for testing, while agreeing with the long-drain conclusions produced by AMSOIL Synthetic Oils:

"I believe the general conclusion that your 'four times normal drain' engines appeared as clear as our mineral oil 'normal drain' engines is testimonial to your oil, in spite of the unanticipated severity of the General Motors 3.8 liter engine."

Adding It Up
In the end, the long, grueling test, so riddled with the unpredictable events of real-life, pointed to a product vastly better than ordinary petroleum. It established base-line data that supported AMSOIL recommended drain intervals of 25,000 miles or one year. It gave visible evidence of how AMSOIL Synthetic Oil behaved in the worst of circumstances. And it established the role of the company's synthetic lubricants in the looming age of conservation and environmental awareness.

For those who used their vehicles to make a living, it promised a way to make the vehicle last longer, have fewer down hours for general maintenance, and a way to increase the profitability of their business.

Kenneth Lindland, 330,000 miles and still going

Kenneth Lindland, a retired preacher from Grass Lake, Michigan, didn’t really know what he was getting into when he purchased his used 1985 Pontiac Parisienne from his wife Agnes’ brother in 1989. At that time, the car had just over 57,000 miles on it, and Lindland said he would be happy if the car simply held together until 137,000 miles.

He got all of that, and a lot more.“The last thing on our minds when we obtained this car from Agnes’ brother was that we would drive it an unusual number of miles,”Lindland said. “I figured if we drove it to 137,860 miles that we would have our money’s worth out of a totally depreciated car.” Lindland soon had to recalculate his depreciation figures to 150,000 miles, and then to 200,000 miles. He would be recalculating those figures for quite sometime, because the car was just too good to part with. “Because I had such short-term mileage expectancies for the car,” Lindland said, we didn’t ‘over-protect’ it. We used it for jobs like hauling firewood and gravel at our cottage. This car vastly outperformed all of our expectancies.”

Because the car kept running dependably past all of his benchmarks after becoming fully depreciated, Lindland realized that the car was actually making him money at the depreciation figure of 10 cents per mile. By the time it had accumulated over 330,000 miles, Lindland decided it had saved him the nearly $20,000 he would have spent on acquiring a new car. So when it came time for the Lindlands to purchase a motor home, those savings were instrumental in the decisionto make the purchase. “This Pontiac actually bought our motor home for us debt free,” Lindland said.

Lindland credits the car’s long service life to using AMSOIL synthetic motor oil in the engine since the day he bought it. “I’m very grateful for the longevity which I believe AMSOIL gave to our vehicle,” Lindland said. “We’ve kept it up, but as far as I’m concerned, the secret is lubrication.”

Lindland also credits AMSOIL synthetic motor oil with savings associated with the costs of motor oil and motor oil disposal. “We have changed the oil only 11 times (every 25,000 miles) while we owned the car,” Lindland said. “If we used conventional oils changed at conventional 3,000 mile intervals it would have required more than 400 quarts to last this long. We have used only 55 quarts for the oil changes and 13 extra quarts when changing filters. Just think how much oil this kept out of disposal units!”

Although the car has accumulated more than 340,000 miles, the engine and transmission are in remarkably good shape. In fact, it ran so well through the years that the head was never removed for any repairs. Lindland had a compression test done on the vehicle in December 2000, and could barely believe the results. The highest and lowest recorded cylinder pres-sures were only eight pounds apart.

Unfortunately, all good things must come to an end. Although the car seemed to have many miles left to travel, Lindland’s wife Agnes finally convinced him that it was time to purchase a newer car. “The longer he had the vehicle,” she said “the harder it was to make him get rid of it.” It was with great reluctance on Kenneth’s part that the Lindlands purchased another car. With appreciation they gave their Parisienne to AMSOIL INC. “I feel very indebted to AMSOIL,”Lindland said. “No way would this car have given us this fine service with conventional oils.” The Lindlands drove up the 700 miles from Grass Lake, Michigan, to Superior, Wisconsin, to deliver their Parisienne to Superior on June 26, 2001. The car is now being driven by an AMSOIL employee to see how many more miles can be added to the 340,000.

Another satisfied Amsoil customer goes 362,000 and only 15 oil changes on Amsoil. See this Geo Prizm owner as well as a Honda owner who started Amsoil at 195,000 miles.

Ted Pickul Makes Prizm Durable With Amsoil

Over 360,000 Miles

1992 Geo Prizm runs like new with way over 300,000 miles Direct Jobber Ted Pickul drives a 1992 Geo Prizm with unusually high miles. As of February 2005 the Prizm had over 362,000 miles on only 15 oil changes and 31 filter changes. Pickul credits AMSOIL products with extending the life of his car's engine.
Pickul bought the Prizm new in June of 1992 and after 3,000 miles, converted it to AMSOIL 10W-30 Synthetic Motor Oil. Pickul also installed an AMSOIL 2-Stage Air Filter.
Pickul converted to AMSOIL Automatic Transmission Fluid at 30,000 miles, and has changed it five times.
After owning the vehicle for one year, Pickul changed the engine coolant to AMSOIL Antifreeze & Engine Coolant which he changes at two-year intervals. Pickul uses a 16 oz. bottle of PI Gasoline Additive every three or four months, and every 30,000 miles he treats the car to
AMSOIL Power Foam Carburetor and Engine Cleaner. At 200,000 miles. Pickul converted to AMSOIL 10W-40.
Everything still looks new in this valve cover even with all of the miles. Pickul has demonstrated complete faith in AMSOIL products to keep his car running smoothly.
"In November 2003 with 329,000 miles on the engine, I drove the car from Sarasota, Florida to Carbondale, Illinois without stopping," said Pickul. "The 13-hour trip was a true tribute to the AMSOILization of this vehicle."
The Prizm has a 1.6 liter 4 cylinder engine that has had no major problems. The valve cover was removed at 360,000 miles and it was exceptionally clean.

25,000 Mile Motor Oil

121 Alexandra Woods Drive, DeBary, FL 32713

Phone: 386-232-4186