2000(Old style) vs 2003

DOGMAN · May 22, 2003

I had a 2000 crew cab with the 5.7 , 3.73 rear-old body style(last year) before the 2001 1/2 came out. It was a great truck but only got 10-11mpg city 13-14 hwy. I'm looking at another crew cab 1500HD with the 6.0 , & 4.10s. The new vortechs are more efficent-so what are you guys REALLY getting with the new vortechs? or will my milage be the same as my old truck?

k1500chevy97 · May 22, 2003

I have heard the mileage for the 6.0 is about the same as your current truck (it might be 2-3mpgs better)

Shaners · May 22, 2003

I'd say the city MPG's are about the same... However the Highway numbers that I get in my truck (6.0L 2500HD crewcab 4x4) are a little higher than you are currently getting. Plus, I have quite a bit more HP!!!

The 6.0L is surprisingly quick for a 6K LB truck...

BTW I have the 4.10's, but I understand the 3.73's in the 1500HD's are getting 16 MPG's highway after breakin.

DOGMAN · May 22, 2003

So what are you getting with the 4.10s?

Shaners · May 23, 2003

My truck is seeing extreme duty. It is driven at least 6 days a week and will be 2 years old the end of June... I just turned 10K miles!!! (lots of short trips)

On the avg I see about 11 mpg's... high of 16 mpg's and low of 7 mpg's (the low MPG tank lasted 5 weeks of winter driving).

I get about 8-8.5 MPG's towing my 8K lb + travel trailer...

BDBWTE · May 23, 2003

I had a 2000 crew cab with the 5.7 , 3.73 rear-old body style(last year) before the 2001 1/2 came out. It was a great truck but only got 10-11mpg city 13-14 hwy. I'm looking at another crew cab 1500HD with the 6.0 , & 4.10s. The new vortechs are more efficent-so what are you guys REALLY getting with the new vortechs? or will my milage be the same as my old truck?

I have a 2500HD Reg. Cab. 5spd 4x4 w/4.10's and I get about 10-11 in the city and up to 13 on the highway. Note: I have 285's on my truck, ranchand bumpers with don't help nothing plus a constant load of something in the bed. So you might see better results. When I first got my truck and she was stock I was getting 12-13 city and 14-16 on the highway. God bless a 5spd w/overdrive.

'02 HD · May 23, 2003

I have a '02 2500HD 4x4 Crew Cab with the 6.0L / 4.10 combo. I am running 285 Revos so the spedo is not accurate so I may be getting better mpg than my calculated 12-14 on the highway.

Had a '93 Z71 extended cab 5.7 before and got high of 16mpg hwy. Did not have near the horses as the HD 6.0L. She had 183,000 miles on her when I traded. I currently have 15,000 on the HD. Hoping for the same luck with the HD.

Use Mobil 1 every 3000 miles.