fuel additives

I have 22.5 low profile tires, i run at 55mph (which is 1250/1300 rpm) as much as i can, im allways at max gross weight and im pulling a reefer. truck has 244 inch wheelbase and i have the 5th wheel as far forward as i can to keep the trailer close to the cab. I drive as gently as i can, i accelerate slowly , i split 3rd and 4th gear in the low range then split every gear up to top gear. I hit the cruise as soon as i get to the speed i want. I find that starting on an incline or a hill i will use bull low to get rolling then start splitting every gear through the entire 18. it takes me longer to get going and im sure it pisses off some drivers behind me but hey its how i get the best economy out of my truck. ive been driving for a year now and i have driven a pete 379 a volvo POS a kw t2000 and a pete 387. ive had the w900 for 6 weeks now and its the best truck i have driven. as for pulling power and cruising speeds i dont have any comploaints and i find it fits the way i drive perfectly. i am otr, all over the midwest and west coast. I find in cali i shift down half a gear as i go up the hills and usually find that 6 over is a good pulling gear at around 1250 rpm on the steeper sections of donner pass. i have never pulled a flat deck so not to sure how the different types of loads and terrain you drive would affect mpg or driveability of your truck. just let me say if i could i would buy this truck off the company and would be quite happy to put it to work doing almost anything i could. its a #### good truck , the cat is a very capable engine and the way its geared and setup is a good working combination. hope this helps a bit with your question.

 

thanks for your replies, i totally agree with what you are saying. I have read all the links posted here and ive done a lot of research on the net and its hard to differentiate between what is genuine research and what is "promotional research". like you say its worked for you and thats the thing i was looking for with my original post, the personal experiences over time of people using particular products. I will try out one particular product and see if it works for me, if not i will stop using it. if it works i will be happy. thanks again for your replies , they were exactly what i was hoping for in a response to my original question.

 

thanks for the link,this was an interesting article to read. i was surprised that the lucas and howes were not as effective in this particular study. they are the two most available and advertised products. i did look up the opti-lube site and had a read of the info they had on there products. i dont recall seeing it before so i will keep an eye out for it and give it a go if i can. it seems to be generally accepted that ulsd fuel doesnt provide the required lubricating properties required of the modern diesel engine UNLESS the correct additives are added either by the manufacturer or distributor of the fuel. now my question and concern is - do the manufacturers and distributors ALL add the required additives to the diesel before it is made available to the public? in a time when the cost of fuel is increasing for all parties do the distibutors add this at the required amount? it seems that a concern could be raised in this topic. i didnt know that the additive was required to be put in by the manufacturer/distibutor of the ulsd fuel before sale to the puplic. i wonder how many others knew this? i wonder if the reported problems with the newer engines are in some way related to this issue? maybe- maybe not? seems to me that if i add a 30 dollar bottle to each fill it would go a bit further to makeing me feel that my engine is deffinately getting the required fuel properties it needs instead of HOPING the manufacturer/distibutor made the correct additions before i put it in my tanks.