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TOPIC: S2L anyone running this ?

S2L anyone running this ? 2 years 6 months ago #10016

  • laynlow transport
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Running hd300 on no power just for winter and s1m but i think the rpms are way to high for all the city driving i do 99% of the time the rpms are at 2000 i tryd s2m yesterday and wow it shifts so smooth lol ....is anyone on s2l or s2h?
2008 F350 fX4*****EVERYTHING DONE*******
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Re: S2L anyone running this ? 2 years 6 months ago #10017

  • GaLawnCare
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I have been running SL2 High for 5K miles.. I really like it, but I have been thinking about going back to SL1 high to see if 4th gear lockup will help with mileage. But I don't like how hard it engages TC lockup in 4th, it really jolts my truck.
Last Edit: 2 years 6 months ago by GaLawnCare.
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Re: S2L anyone running this ? 2 years 6 months ago #10018

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GaLawnCare wrote:
I have been running SL2 High for 5K miles.. I really like it, but I have been thinking about going back to SL1 high to see if 4th gear lockup will help with mileage. But I don't like how hard it engages TC lockup in 4th, it really jolts my truck.
when dose 5 lock on that setting s2m still seems kinda high rpm.......i have to speed to get it to shift .....since i switched from wild to no power and low boost fuel from 4 to 0 i gaind 60km to a tank very happy cause i fuel up every 4 days
2008 F350 fX4*****EVERYTHING DONE*******
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Re: S2L anyone running this ? 2 years 6 months ago #10045

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laynlow transport wrote:
GaLawnCare wrote:
I have been running SL2 High for 5K miles.. I really like it, but I have been thinking about going back to SL1 high to see if 4th gear lockup will help with mileage. But I don't like how hard it engages TC lockup in 4th, it really jolts my truck.
when dose 5 lock on that setting s2m still seems kinda high rpm.......i have to speed to get it to shift .....since i switched from wild to no power and low boost fuel from 4 to 0 i gaind 60km to a tank very happy cause i fuel up every 4 days

It depends on tire size and gear ratio.. My locks in 5th at 55mph and stays until I get below 50mph.
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Re: S2L anyone running this ? 2 years 6 months ago #10061

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i run S2L and love it. Bear in mind GaLawnCare, just because your rpms are lower does not mean better mileage. I have a MiniMaxx and i set one of that gauges on fuel consumption. When the engine is lugging it actually uses more fuel than when it is revving easy at a higher rpm. I got best mileage using schedule 2 shift patterns. (it does depend on the type of driving though)
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Re: S2L anyone running this ? 2 years 6 months ago #10121

  • Montana Diesel
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Gotta agree with the boys, it all depends on your driving. S2L seems to work when you do more city driving. I'm out on the highway a lot and have found S1M seems to work the best. I like the higher rpm when running up and over the continental divide and just general mountain driving around curves, etc. B)
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'08 F-350 Fx4 with a 6" Fabtech lift, Bilsteins, Mini max HD 300, Volant cold air intake, Mag-Hytec deep transmission pan, MCC custom tuned transmission schedule, 4" flo-pro straight pipe back from downpipes
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