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Milwaukee · 10-20-2009, 05:18 PM

Not for 5.8L with 3.55. But for diesel Yes.

When it kick overdrive in 40 mph and vacuum gauge drop FAST. like it should be 10 or high to get great mpg when overdrive kick too early it went to 0-2 which is bad plus it lug engine.

I put 10,000 miles on van so I know how it work. I try with overdrive under 45 mpg and didn't get 13 mpg it was 9-10 mpg plus it get little Hotter than normal.

10-20-2009, 05:18 PM	#23 (permalink)
Milwaukee EcoModding Apprentice Join Date: May 2009 Location: Michigan Posts: 111 Thanks: 8 Thanked 5 Times in 5 Posts	Not for 5.8L with 3.55. But for diesel Yes. When it kick overdrive in 40 mph and vacuum gauge drop FAST. like it should be 10 or high to get great mpg when overdrive kick too early it went to 0-2 which is bad plus it lug engine. I put 10,000 miles on van so I know how it work. I try with overdrive under 45 mpg and didn't get 13 mpg it was 9-10 mpg plus it get little Hotter than normal.