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S70 GTAS Sport v Economy MPG[ALL/1998] posted by Tony Zee on
Friday, 30 May 1997, at 6:51 p.m.

Has anyone calculated the MPG differential when the automatic transmission is engaged in Sport mode versus Economy mode? I assume the EPA numbers are based on the Economy mode.

Thanks and regards, Tony Zee - '98 S70 1500 miles not a single problem!

Re: S70 GTAS Sport v Economy MPG[ALL/1998] posted by Stu Glass on
Sunday, 6 July 1997, at 5:52 p.m.

Tony, I have a S70 GLT and see no difference. Shifts are nicer in Sports mode, but full tank fuel use is about the same. I only have 2000 miles on Volvo, so maybe after 5 or 10K things would be different.


Re: S70 GTAS Sport v Economy MPG[ALL/1998] posted by abe crombie on
Monday, 7 July 1997, at 1:16 a.m.

Depending on your driving style, you likely won't see a difference in MPG in the two trans. modes. The program in Sport selection is really no different until you exceed approximately 20% throttle opening. My opinion on the mode selection is that you would be better off leaving it in S position as the trans will likely last longer due to higher throttle shifts using higher pressure to increase firmness and the resulting decrease in wear of friction linings in gearbox. Carmakers have to please a variety of tastes and some people never won't to feel a transmission shift, that is why there is an E selection. I have driven many miles in late model Volvos using transmisions with the mode selections and I have not seen any MPG differences that I could detect, but I have found that the increased sesnsitivity to downshift in S mode can make the trans shift more when climbing hills with cruise control controlling the throttle.


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