New tow vehicle!!
For the last several years I've used my '03 Tahoe to tow our 7K# Toyhauler almost exclusively through the Colorado Rockies. It did it but wasn't happy about it. It was reliable and comfortable for o...
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Fixed Sight Training wrote:The_real_wild1 wrote:
I just traded in that same truck (mine was a 2014) for a diesel. I ran reg fuel for the first 2/3rds of its life then after some research and talking to some friends with the same engine I went to premium fuel. It costs more but is well worth it. The engine ran much better and more power. I suggest you do the same.
I tried both 85 and 87 octane. The 87 has a little better mileage, about 13 so the cost is a wash but any increase in range is good.
Thanks for all the well wishes. The truck seems like it will do anything I need it to and it better for the next 15 years or so based on the cost. ;)
Our reg fuel here is 87 octane. When I say I was running premium we are putting in 91 or 94 octane. You won't notice any gains with 87. For the extra few bucks try 91 or higher in the truck for a few tanks. You should notice a big difference. Then if you are unsure switch back to the lower octane. Again you should notice the difference. But run a few tanks of premium, not just 1/2 tank or so. Everyone I know and have seen on the Cummins board agrees with running high octane in the 6.4 hemi. The 5.7 won't see any gains.
