Re: [ATM] OT: increasing mpg

["Don D'Egidio" <djd521@comcast.net>]

Don,

I would make certain you are not exceeding the Max Pressure marked on the sidewall of the tire. I have Cooper 205-70R15 and the max pressure for them is only 35 lbs.

Watch for any signs of tread wear at the center of the tread. Most tires were not meant to be constantly run at the max tire pressure.

Don

----- Original Message ----- 
From: "Don Clement" <clement.focuser@verizon.net>
To: <atm@atmlist.net>
Sent: Friday, May 05, 2006 10:29
Subject: [ATM] OT: increasing mpg


> This may appear to be off topic for this list; I believe that most of us
> drive to darker skies in order to use the scopes we build. I would like to
> share a few things that I did to increase the mpg of my small truck used to
> transport my scopes to a darker site. The things I did to increase mpg can
> be applied to any vehicle. Before I made these simple changes, my 98'Toyota
> Tacoma truck (5spd, EFI, ext. cab, tall Snugtop shell) averaged about 25mpg.
> I use only the cheapest grade of regular unleaded gasoline. On a recent trip
> up to Yosemite I averaged 32 mpg. This includes running the air conditioner
> most of the way from Bakersfield to Fresno and up and down mountain driving.
> The leg from Redlands to Fresno my average mpg was even better 33.5mpg!
> The first and most important factor was to reduce speed and accelerate
> slowly, particularly accelerate slower going up hill. I used to drive 70mph+
> on the freeway. Nowadays and on this trip I drove a constant 62mph
> (~100kph). I used the highest gear that would not lug the engine for minimum
> rpm.
> Another thing that I have done was to use lower rolling resistance tires. I
> choose Goodyear Viva II and actually went with a narrower tire than stock,
> 195 from the stock 205. Goodyear Viva II tires are available from Wal-Mart.
> I also ran high tire pressure of 45 psi. There are no government standards
> for rolling resistance but here is a link with information that can help:
> http://www.greenseal.org/recommendations/CGR_tire_rollingresistance.pdf
> The last thing I did was to use low viscosity engine oil, I use 5-30W
> recommended in Toyota manual. BTW, my truck has ~160K miles on it.
> I hope this information might be of some help.YMMV
> 
> Don Clement
> Running springs, California
> 
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> 

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