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#1
March 9th 05, 03:32 PM
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(newbie question) oil viscosity and fuel consumption
Does oil viscosity affect fuel consumption? My feeling is that
viscosity is important for starting the motor, but once at running temperature it's not that important. -- William Park >, Toronto, Canada Slackware Linux -- because it works. 
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#2
March 12th 05, 02:19 AM
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I just got back from Jetta 5 school and the manial says rhis. One reason VW
now uses the new electrol-mechanical power steering is because it saves 1/2 gal of fuel n 600 miles. Thicker oil takes more HP to pump than thin oil. So... over time thin oil does save fuel. "William Park" > wrote in message news  > Does oil viscosity affect fuel consumption? My feeling is that > viscosity is important for starting the motor, but once at running > temperature it's not that important. > > -- > William Park >, Toronto, Canada > Slackware Linux -- because it works. >
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#3
March 14th 05, 08:17 PM
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What oil do you guys use in your A3 Jetta ? not the brand but viscosity?
10/30 ? or what? would be interesting to know. I put 30WT Redline in mine this time. maybe thicker would be a little more quite. -Lee "Woodchuck" > wrote in message .. . >I just got back from Jetta 5 school and the manial says rhis. One reason VW >now uses the new electrol-mechanical power steering is because it saves 1/2 >gal of fuel n 600 miles. Thicker oil takes more HP to pump than thin oil. >So... over time thin oil does save fuel. > > "William Park" > wrote in message > news >> Does oil viscosity affect fuel consumption? My feeling is that >> viscosity is important for starting the motor, but once at running >> temperature it's not that important. >> >> -- >> William Park >, Toronto, Canada >> Slackware Linux -- because it works. >> > >
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#4
March 15th 05, 05:48 PM
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In article >,
Lee > wrote: >What oil do you guys use in your A3 Jetta ? not the brand but viscosity? > >10/30 ? or what? would be interesting to know. I put 30WT Redline in mine >this time. maybe thicker would be a little more quite. I use 10w30 in the winter and 15w50 in the summer. Mobil 1 synthetic. 1994 A3 4cyl with 198000~ miles. > >-Lee > >"Woodchuck" > wrote in message . .. >>I just got back from Jetta 5 school and the manial says rhis. One reason VW >>now uses the new electrol-mechanical power steering is because it saves 1/2 >>gal of fuel n 600 miles. Thicker oil takes more HP to pump than thin oil. >>So... over time thin oil does save fuel. >> >> "William Park" > wrote in message >> news >>> Does oil viscosity affect fuel consumption? My feeling is that >>> viscosity is important for starting the motor, but once at running >>> temperature it's not that important. >>> >>> -- >>> William Park >, Toronto, Canada >>> Slackware Linux -- because it works. >>> >> >> > > -- Jeeps and dubs and everything's nice...
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#5
March 17th 05, 04:12 AM
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Peter Parker > wrote:
> In article >, > Lee > wrote: > >What oil do you guys use in your A3 Jetta ? not the brand but viscosity? > > > >10/30 ? or what? would be interesting to know. I put 30WT Redline in mine > >this time. maybe thicker would be a little more quite. > > I use 10w30 in the winter and 15w50 in the summer. Mobil 1 synthetic. > 1994 A3 4cyl with 198000~ miles. I have 1986 Jetta, and I usually use 10w30 in winter and 20w50 in summer. But, this year, I got lazy and forgot to change the oil. I noticed that I was getting noticably low milage than other winters (at least from what I remember). Hence, this thread...
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