Heating oil is typically classified into two main grades: No. 1 and No. 2 heating oil. No. 1 heating oil is lighter and used in some situations where lower temperatures are required, while No. 2 heating oil is the most commonly used grade for residential heating. Occasionally, No. 4 heating oil is also used in certain applications, but it is less common.
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Fuel oil is typically classified into several grades, with the most common being No. 1, No. 2, No. 4, No. 5, and No. 6. No. 1 and No. 2 are lighter, used primarily for residential heating and diesel engines, while No. 4, No. 5, and No. 6 are heavier oils used in industrial applications and marine engines. The classification can vary by region and specific use, but these grades generally encompass the spectrum of fuel oils available.
Reye syndrome is graded I through V at the time of diagnosis, in order to determine a level of severity. Grades I through III are considered mild to moderate, while grades IV and V are considered critically ill.
Heating oil currently serves about 23 million Americans in 8.6 million households.
Many residential fuel oil distributors offer free online price quotes on their websites since the price of heating oil can fluctuate. Research local heating oil distributors to find a price calculator for your area.
It depends what grade is considered a "B+" and what your grade is, as well as what grade that "A" is, if the result can be an "A-," and what is considered "A-." Also, it depends on how many grades you already have in there. For example, if you have 89.90 and 100.00, with just a few other grades, obviously it'll average out to over 90.00. But say you have 89.00 and 95.00, and you've already got 100 other grades in there, it will still be a B+.
#2 fuel oil = 140,000 btu/gallon. Psi does not matter.
Wood is the most common biomass fuel, used for heating and cooking in many parts of the world. It is readily available, renewable, and has been used for centuries as a source of energy.
There is 11 grades total not counting College
In richer countries it is usually electricity or fossil fuels. In poorer countries it is usually wood.
That's the fuel heating element. It helps the diesel fuel from gelling up which can clog the fuel lines and injector ports. Old diesel fuel was more prone to this. New ultra low sulfur fuel isn't as oily as the good old diesel #2 and has more agents in it and is more refined to keep the soot levels to a minimum. The 7.3L didn't have many problems with the heating element except for they have been known to short to ground causing a fuse to blow. I can't remember which one. Other then that not many problems. Hope this helps.