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We are now tuning 2018 GM vehicles!
BBP, what do you mean when you say Autocal in the post. I’m in central IN, I’m guessing that means your service may not be available for my 2018 Yuk Denali?- Mr CFP
- Post #6
- Forum: Black Bear Performance
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87 octane vs 91 octane
I’m not an expert here by any means, however I’m going to use premium in my 18 Denali since it’s recommended. Yes it’s another 30 cents a gl however after spending 70k on it I want it to last a long time and run well. Assuming I run a tank a week on average I’ll spend $7.50 a week or less than...- Mr CFP
- Post #5
- Forum: Engine & Drivetrain
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What cold weather milage are you seeing out there?
I’m averaging 15.7 on 250 mile trip to Cleveland. Temps were in the low 20’s and snowing. Not sure what normal would be, just got our Denali 12/29- Mr CFP
- Post #24
- Forum: General Discussion
