A couple of questions:

3619 Views 10 Replies 6 Participants Last post by tugboat, Feb 23, 2014

Sam I am

Discussion Starter · Feb 16, 2014

Hey folks, I just registered, but have been lurking for a while. A couple of questions:

1) Current truck is a 98 GMC Suburban 6.5 Turbo Diesel...I love the truck. But, could use more power. Will the new Eco Diesel be stronger than the 6.5? I have to think "yes". Any experts want to weigh in?

2) I have 3.42's in my Burb and it get's okay mileage...20 mpg on high way. Previous owner claimed 22, but I switched to A/T tires. The 3.42's tow okay. I live in the Red River Valley and tow my boat on pretty flat terrain, so it works just fine, but if I go east into MN and hit the hills I have to watch the temp gauge in the summer. My boat weighs about 5000 lbs loaded up. Not sure which rear end to go with when combined with an 8 speed...I'm used to 4 speeds.

3) I stopped at a dealership and we went through a mock order...why can't I get a 32 gallon tank in the Eco Diesel?

4) Leveling kit: can you install one in conjunction with the air bag system?

That's it. There were no incentives in place when I went through the ordering drill. Lead time is 6-8 weeks. I was quoted $500 over invoice. Pretty legit. I want to go with some pretty aftermarket rims, level it about an 1-1.5" higher, debadge it, All Terrain tires (not crazy, but BF Goodrich or Nittos) and muscle up the look a bit...I'm assuming a small loss in mileage with those mods, but what's the best guess? 2 mpg loss? More?

Thanks in advance for any feedback.

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DieselTech69

· #7 · Feb 17, 2014

Is there some reason you want to get rid of the Sub?

On a purely cost-basis, I don't think it makes sense - your mileage will be only slightly better than what you get now (after mods and for what you plan to tow), and you'll have a truck payment and higher insurance costs to cover. The slightly higher MPG you can expect will take a long time to recover IMO.

You will of course have a new vehicle and a warranty, and likely no cooling issues while towing in the hills either. And all the new technology and safety features too. What's that worth to you, in terms of cost?

Hopefully I have helped you. Deciding on a new vehicle can be tough! Good luck!

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DieselTech69

· #10 · Feb 22, 2014

L.O.A. said:
What's it worth? Did you have the dealer tell you what it's worth? If they did, don't sell it through them, sell it privately.

That right there is darn good advice, Sir!

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