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Throughout the years the AMSOIL Corporation has received many hundreds of testimonial letters and thank you notes from customers.

The following are a few interesting ones from our archives.

We sincerely invite everyone’s comments and photographs about your special AMSOIL story.

Letter 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8

Tucson, Arizona – After 20 years of racing across the scorching sand dunes of California, Dealer Steve Hart’s dune buggy was begin- ning to feel the heat. Then he switched to AMSOIL. "Because its Corvair engine has always leaked so much oil, I foolishly used a cheaper organic oil in it," said Hart. "However, prior to making last year’s annual Thanksgiving holiday trek to the dunes, I got a case of Series 2000 20W-50 Racing Oil and put it in the engine."
Before making the switch to AMSOIL, Hart says the engine used almost a quart of petroleum oil during each outing through leakage and burnoff.

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"When hot, the oil pressure dropped to 10 lbs. and sometimes frightfully lower. In other words, the engine was getting tired," said Hart.
That all changed with Series 2000 20W-50 in the buggy. "The pressure never got below 20 Ibs. no matter how hard I ran the 200 hp air-cooled engine," said Hart. "And the oil is still only a fraction of an inch below the dip stick’s full mark."
Hart plans on rebuilding the engine, but won’t make any changes to his oil. "I may use an organic oil to ’break it in,’ but leaks be damned!" said Hart. "No other time will this engine ever use anything other than AMSOIL!"