Nah.
The engine is not high compression. 87 octane is the only fuel requirement. Higher octane will not produce more power.
3.slo is prone to detonation when running hot and hard even though it isn't a high compression engine. So, telsar's '93 Ranger might not make
more power while burning premium; it will continue to make
rated power.
Whats that and whats it do?
Quick physics of the attachment of trailer:
When I hook up my condo on wheels - 5k lb trailer, it puts ~600lbs weight on the ball of the trailer hitch. As the ball is ~4' behind the rear axle, this takes ~300lbs off the front; with the result being ~1k lbs is loaded on the rear axle. Result is 3 fold - hitch is overloaded for non-weight distribution, rear axle is over GAWR, and head lights are pointed to where the only thing they can do is track N. Korea missiles.*
So, while I
could run like this, it wouldn't be safe and my insurance wouldn't cover me if I was in accident - at fault or not.
Therefore, I have a weight distribution (WD) receiver** -
http://www.curtmfg.com/part/17002. When I load up the levers of the WD, it puts weight back on front tires, taking off the rear and as a result levels the truck.
I am now under GCWR and GAWR, within the 700lb rating of the hitch, safe to drive and my insurance will cover me (Well, at least they couldn't play the overweight card).
Now, with your truck and its max trailer of 2,500lbs; 10-15% weight on hitch, doesn't really have the issue with the rear axle overloading/front end pointing to sky. You could get a lighter WD hitch (Mine would make for a stiff ride) e.g.
http://www.curtmfg.com/part/17345, but I'm not sure it would be necessary...
*My truck is '98 s/c with 4.0/auto, GVWR - 5310 and GCWR - 9,500 (max trailer 5,500lbs theoretical).
**WD receiver is bloody heavy, with ball/locks/etc it is almost 100lbs, and that is 100% hitch weight which needs to be deducted.