Re: OT: Real world Diesel Mileage?

Posted by Hugh MacKay on August 17, 2005 at 13:14:55 from (209.226.106.70):

In Reply to: Re: OT: Real world Diesel Mileage? posted by Bob M on August 17, 2005 at 07:24:00:

Bob: The less noise item at 1500 versus 2500 is the one that really gets to my heart. I drove a tandem log truck for a spell. 3306 Cat rated at 300 hp with an LL8 transmission. I forget rear end ratio, but at 60 mph the engine turned about 1600 rpm. We annually delivered about 4 loads of spruce logs per year to a small boat builder that had a turn down saw mill for making odd sized lumber. The company had always delivered his logs with a 671 Detroit. I drove in for the first delivery with the new Cat. He was walking from house to shop just after lunch, I thought he at least heard me, and figured he was walking through shop to the mill at the far end. He didn't come out and being my first time there wasn't exactly sure how he wanted logs piled. I went in shop, and sure enough he hadn't heard the truck. After showing me where he wanted logs and I moved truck again, he commented, " My gosh that truck is so quiet you could sneak up on a man on foot and run him down even at door yard speed."

I had ocasion several times to have that truck warming up in winter in my yard along with my 6.2 Chevy. Marg. liked to drive the Chevy truck in winter. From the house you could always hear the 6.2 above the Cat on a cold morning. On the road my 6.2 with 3.24 gears was actually a quite pickup. I've watched more guys put 4.10 gears in a pickup, could never figure the purpose other than a noise maker.

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