That is the procedure I normally follow. Sean > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf > Of David Brodbeck > Sent: Wednesday, January 21, 2004 2:08 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: 1981 Westy gas tank capacity > > > On Wed, 21 Jan 2004, Karl Ploessl wrote: > > > Sean asked: > > > > What is the capacity of a 81 Westy (stock). > > My gas gauge does not work and I think my mpg just dropped > from 17 to > > 14 after a tune up. > > -------------------------------------- > > > > according to the "vanagon specifications" (for 1981) the > fuel tank holds > > 15.9 (US) gallons (60 liters) > > However, if you need the tank capacity to do mpg calculations, you're > probably doing them wrong. Here's what you want to do: > > - Fill the tank completely. Reset your trip odometer. > - Drive a couple hundred miles. > - Fill the tank again, at the same pump if possible. Use the same > procedure. (i.e., if you stopped at the first shutoff the first > time, stop there again.) > - Note how many gallons you added. This is how many you used since > the last fill-up. Divide the reading on the trip odometer by > this number. > > The pump shut-off is not always consistent, so it's best to > do this a few > times and average the results. On a car that I've just > bought, or that > I'm planning on doing engine work on, I'll often actually > keep a running > log of the fuel economy for every tank of gas I buy. This > can be really > educational about your driving style and the effects of any > repairs you > do, as well as giving you an idea about your engine's > relative state of > tune. A small notebook is excellent for this, or if you > carry a PDA there > are free software packages that will do the job for you. > > > David Brodbeck, N8SRE > '82 Volkswagen Diesel Westfalia > '86 Volvo 240DL wagon > |
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