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[shanerv]

so figured I would ask if you live in the northern regions if you have had issues or notice differences when tuning turbo cars with summer blend vs the winter blend of gasoline's

[highroller54]

Didn't know there was winter gasoline. Winter diesel yes but didn't know about gas.

[Teg2boo]

I'm using Petrocanada 94 in the winter for the Teg and haven't notice a difference really. I know there's additive in the 94 but it works well for me.

The motor is a b16b (10.8:1) @8psi and no problem so far. Winter or summer.

I also didn't know there was a winter blend. That's a fact or you think there's a blend?

[92CXyD]

https://blog.gasbuddy.com/posts/A-crash-course-on-seasonal-gasoline/1715-401024-239.aspx

[shanerv]

i have heard that it affects afr a bit but I was wondering about hp affect it might have

[92CXyD]

i have heard that it affects afr a bit but I was wondering about hp affect it might have

w/ E10 AFR should be 14.09:1

10% ethanol blended gasoline is 14.09 AFR.  E10 gasolines will be stoich at 14.09-14.7 AFR.

Using a display calibrated for gasoline, 12:1 on gasoline, 11.5:1 on E85 (stiffer alcohol blends) and you will be fine.

From:
http://www.realhomemadeturbo.com/forum/index.php/topic,22633.msg225979/topicseen.html#msg225979

Keep in mind if you use a AFR displayed in lambda 1.0 is stoch. for any fuel used.