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jerem0621's avatar
jerem0621
Explorer II
May 30, 2014

Suburban 2500…6.0 vs 8.1 vs Excursion V10

I have been really considering buying a Suburban 2500 from the early to mid 2000's. We are an SUV family and I think we will be well served by our future TT with a Suburban 2500.

My wife and I ride into work together a lot but there are times where we will have to commute separately to work about 70 miles round trip.

The question is then.. do I sacrifice the few extra MPG's of the 6.0 Suburban for the brute power of the 8.1 or will the 6.0 be more than enough for our future 8-9000 lb TT?

If you do not mind… would owners or those who have experience with both these subs post MPG and that sort of thing?

And no, I have not ruled out an Excursion with a V10 :) My last experience with a V10 was great, just very thirsty… My Dually V10 got about 9-9.5 empty all the time. If I could get an Excursion V10 to kiss 13-14 on an interstate commute that would be more than acceptable too.

Yes, I know its petty to talk about MPG with these beasts, however, putting 10-20k per year on a vehicle is always a possibility and every MPG helps.

Thanks!

Jeremiah

101 Replies

  • We traded in our old 8.1L Suburban for the newer 6.0L model and would trade back in a heartbeat. The only advantage of the 6 is a couple of miles per gallon better in the city. We never drive on the highway unless towing.
    We just towed from Springfield, MO to Little Rock, AR and were down to 30 mph on some hills because the little engine just didn't have enough power to keep up with the traffic without dropping off to second gear and rev over 3000 mph which we didn't want to do.
    It remains to be seen how long the engine/transmission lasts doing this kind of towing.
    Incidentally we tow in Tow Haul mode which eliminates 6th gear.