Oil giant pulls out of 100LL business

Posted on December 19th, 2011 by

UPDATE: Calls from AOPA and EAA Tuesday morning inform us Ben’s column is incorrect. Exxon-Mobil will continue the manufacture of unbranded 100LL fuel. Exxon-Mobil will discontinue branded fuel sales under the Exxon Avitat flag. We are awaiting confirmation from Exxon’s... Continue Reading →

What part of ‘no’ don’t they understand?

Posted on November 20th, 2011 by

One of the joys of being retired is that I get to read more of the newspaper each evening. Now the front page has all of the big stories that are of worldwide importance, like the Kim Kardashian marriage that... Continue Reading →

Why lead reduces knock

Posted on October 24th, 2011 by

In the Sept. 23, issue of General Aviation News, there was a letter to the editor from Jack Thompson, who wrote: “Re: Visser’s Voice: Knock free, Aug 26 issue: It is a sad commentary given that the IC engine is... Continue Reading →

Winterizing your plane

Posted on September 25th, 2011 by

A couple of days ago when I went out for my morning walk I noticed something had changed. Instead of warm and sunny, there was a chill in the air. I then realized that fall is approaching and I needed... Continue Reading →

Knock free

Posted on August 29th, 2011 by

In one of my recent columns I stated that if an engine runs knock free on an 87 octane fuel, using a higher octane fuel will not benefit you in any way. I received several inquiries about whether this was... Continue Reading →

Flawed logic

Posted on July 6th, 2011 by

Ben Visser is an aviation fuels and lubricants expert who spent 33 years with Shell Oil. I recently received a question from reader Bill Blank asking whether there was more BTUs in higher octane fuels and if there was any... Continue Reading →

Good science

Posted on June 8th, 2011 by

Ben Visser is an aviation fuels and lubricants expert who spent 33 years with Shell Oil. In one of my past columns, I criticized the ethanol industry and others for using “bad science” to promote their products. I received several... Continue Reading →

How long can fuel be safely stored?

Posted on May 15th, 2011 by

Ben Visser is an aviation fuels and lubricants expert who spent 33 years with Shell Oil. He has been a private pilot since 1985. Reader Jerry Johnson recently wrote in with a question about fuel storage: “Rotax indicates that octane... Continue Reading →

Testing for ethanol

Posted on April 19th, 2011 by

Ben Visser is an aviation fuels and lubricants expert who spent 33 years with Shell Oil. He has been a private pilot since 1985. How do you test for ethanol in auto gas? Recently, I’ve received a lot of e-mails... Continue Reading →

The fuel of the future: Is it already here?

Posted on February 27th, 2011 by

Ben Visser is an aviation fuels and lubricants expert who spent 33 years with Shell Oil. He has been a private pilot since 1985. I recently received a note from reader Scott Shroyer, who is looking to buy a used... Continue Reading →