ComStar Super Heat 8-In-1 Heating and Fuel Oil Treatment (16 Ounces)

4.5 4.5 out of 5 stars | 524 ratings

Price: 11.16

Last update: 01-25-2025


About this item

ComStar’s Super Heat is a trusted choice for maintaining fuel systems, offering 8 treatments in 1. It supports smooth operation by melting ice, lowering the pour point, addressing waxing and jelling, reducing water, cleaning parts, dissolving sludge, minimizing soot, and helping protect against rust.
Fuel treatments help enhance the efficiency and longevity of fuel systems. Over time, impurities like carbon and water can accumulate in fuel tanks, potentially affecting performance. Regular use of Super Heat supports consistent operation and system care.
Water can sometimes enter fuel tanks, leading to potential issues. Super Heat helps maintain system integrity by addressing water accumulation and supporting cleaner operation.
In colder climates, fuel may thicken in low temperatures. Super Heat helps maintain optimal flow, keeping systems running smoothly even in challenging weather conditions.
Use Super Heat regularly for year-round fuel system care and improved efficiency. Add 8 oz. with every 275-gallon refill to maintain peak performance.

Product information

Technical Details

Manufacturer ‎ComStar
Brand ‎Comstar
Model ‎60-130
Item Weight ‎10.7 ounces
Product Dimensions ‎4 x 2 x 6 inches
Country of Origin ‎USA
Item model number ‎60-130
Manufacturer Part Number ‎60-130
Special Features ‎sludge remover, hot oil treatment, oil tank additive, fuel oil additive, diesel treatment

Top reviews from the United States

  • Kathy
    5.0 out of 5 stars ComStar Super Heat, 8-in-1 Fuel Oil Treatment
    Reviewed in the United States on October 16, 2024
    Our oil boiler is still running without any issues. Definitely will buy again.
  • gobdeep
    5.0 out of 5 stars A winner after one use
    Reviewed in the United States on October 25, 2019
    Update 1 year later: it's that time of the year again. Leaves are changing colors, nights are cool in the mid 40's, and my heating system is coming back to life after many months of hibernation. I used another bottle of this at the start of fall and once every two or three fill ups. I am still impressed by this product and it is keeping our heating system in tip-top shape.

    Original review: I had a clogged filter and, while waiting for my new filter to arrive, tried a bottle of this in my heating oil (diesel) tank. Wow! What a difference. My entire filter looked brand new. Completely impressed after just one use. I’ll be using this product regularly from now on.
  • William J. Prah
    5.0 out of 5 stars Makes Your Oil Furnace More Reliable!
    Reviewed in the United States on October 29, 2022
    I've been using this product for the past 7 years. Just one bottle, treats a 275 gallon tank of oil. It helps stabilize the oil, eliminate water, kills sludge and bacteria (mold and slime), and has kept my oil flowing smoothly from the tank to the furnace all this time. I don't start the heating season without it!
  • Viendoto'
    4.0 out of 5 stars Don’t rely on your fuel oil tank guage and try Comstar and see if it helps.
    Reviewed in the United States on February 20, 2019
    My burner and filter previously, on occasion would get clogged with sludge and require a blowout to return to normal. This usually happened when I had a little less than a 1/4 tank. The boiler would run for 3-5 minutes, then gurgle and shutoff. Last heating season I started putting 1/2 a bottle of Comstar super heat in at a 1/4 tank. I stick the tank and usually can feel the sludge on the bottom; currently, I’ touching the bottom and no sludge feeling. Burner has been running fine and I use about 4 once’s prior to each delivery. Could cost less, but so far seems to do the job. Followup: Super Eight continues to keep sludge and or water from compromising my burner; I’ve conducted water paste teste since using and there is no evidence of water.: When I stick the tank , I touch bottom?(metallic bottom sound) , no sludge feeling. Unfortunately, I was about to buy again, but even though the advertised price is $12.07which should cost 36.96 is suddenly $33 and change. I’ll look elsewhere
  • John A.
    5.0 out of 5 stars Worked well down to 5 degrees F
    Reviewed in the United States on February 4, 2023
    I have an outdoor 275 gallon tank at my shop. I had an issue earlier in the year with the feed line freezing solid around Christmas in single digit weather. I was using diesel anti gel, many different types over the years, and the line still froze, although I will admit the oil was delivered in March 2022. I refilled the tank soon after, but we have been having unseasonably warm weather. The forecast was calling for single digits last night, so I added a bottle of 8 in 1 to a half tank (150 gals) Last night we dropped to 5 with a -20 windchill. I stopped in today to find the shop warm. Fired up without at problem at 20 degrees outside. I will continue to use this as long as I have oil heat! Definitely recommended
  • Hector
    5.0 out of 5 stars Super Heat, 8-in-1 Fuel Oil Treatment
    Reviewed in the United States on December 31, 2022
    This is exactly what I need for our outdoor oil tank. Shipping was fast and the price is fair.
  • Dick Phillips
    5.0 out of 5 stars It’s a product that reduces “gunk” in the oil tank
    Reviewed in the United States on April 9, 2023
    I have only just started using this product this season at the advice of my oil service provider.
  • John Oswalt
    5.0 out of 5 stars Keeps hating oil from gelling in the winter and controls condensation in the summer
    Reviewed in the United States on May 24, 2023
    Good product everything I said in the title I buy a bottle every time I get my tank filled

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