Lost fuel economy switching to synthetic engine oil?

[just a number]

what are you changing them to?

 

[turbovanman]

what are you changing them to?

See sig, ):h

 

[just a number]

so you went from 3.08 to 3.73? or the other way around?

 

[turbovanman]

so you went from 3.08 to 3.73? or the other way around?

I have 3.08's and will be installing 3.73's.

 

[just a number]

should be nice for the bottom end. as you most likely figured you'll lose some mileage. I've got the exact opposite problem. all bottom and no top speed. did you figure the RPM differences in yet?

 

[turbovanman]

should be nice for the bottom end. as you most likely figured you'll lose some mileage. I've got the exact opposite problem. all bottom and no top speed. did you figure the RPM differences in yet?

Its on the other site, I'll go dig it up. I most likely won't lose much if at all, but towing will be soooooooo much easier. Believe it or not, with all the mods I've done so far, its got alot of snot around town, my buddy thought I'd put the turbo on already, ):h


3.08-
60 =1499
70 =1749
75 =1873

3.73's
60 =1815
70 =2118
75 =2269

 

[just a number]

Ya having that bottom end grunt is great. still not to bad of RPM's, kinda put's you right in the sweet spot at cruise.