This product has a two year shelf life so yours may not be good anymore. This product is table down to -60 degrees C. This will not freeze or separate at any temperature. Please see the tech data sheet in the 'Documents' tab for more information.

The short answer is yes. This has an advanced deposit removal ingredient which will remove existing deposits. Depending on the quantity of the deposit, this may take time to achieve, but generally one or two full tanks of fuel will do the job. Fuel injectors and throttle bodies get cleaned up as well at the same time.

Yes, Decalin Runup is compatible with auto gas. Decalin should be added in proportion to the 100LL being added. There are no negative effects to doing this.

Per Vendor, Yes the Declain Runup is compatible with fuel resistant composite fuel tanks along with fuel resistant fiberglass cloth and epoxy resins and hardeners.

10 quarts per case.

Per the Supplier: All our experience so far says that this issue is unrelated to the addition of Decalin RunUp to 100LL. The ingredients in this product are miscible in all proportions with aviation gasoline. To speculate, cold weather causes condensation in fuel tanks, so this issue may be more related to the season.

The active ingredient in Decalin RunUp follows the “lead” of the lead, if you’ll excuse the pun. It reacts with a majority of the lead in the fuel to produce lead phosphate which is mostly blown out of the exhaust. Remaining lead in unburnt fuel finds its way into the oil by bypassing the pistons. The ingredient is already dissolved in the fuel and goes with it into the oil sump. There it acts as a suspending and dispersing agent, preventing the lead from precipitating and agglomerating into an abrasive sludge. It also performs other useful duties by helping to remove carbonaceous deposits in the oil galleries.

Shelf life is 2 years from the date it is shipped to us. This is unopened, and storage would not add to shelf life.

Yes, Decalin RunUp will work just as well with fully synthetic oil in suspending the lead in the oil. There is a limit as to how much lead it will hold in solution and here is some reported data in a Rotax engine using synthetic oil. The results indicate that after 91 hours of operation my oil contained 1098 ppm of Lead (Pb). During the 91 hours of operation I used 49.85 gallons of 100 LL fuel, all of which was treated with Decalin at the rate suggested on the product.

Yes, there is a date code on the bottle.

The dosage of 1/2 ounce per ten gallons of fuel is a minimum. This can be increased to a maximum of 2 ounces per gallon for problem engines.

Yes it can be used in the Rotax 582 engine. This is a two stroke engine and we have a number of customers who have had good results using Decalin RunUp in them, with reduced valve and combustion chamber deposits and a smoother running engine.

Yes it is per US gallons. THIS 16OZ BOTTLE TREATS 320 GALLONS

To ensure the fastest initial mixing it is best to put the Runup in first. If it is put in after, Runup will disperse quite rapidly in the fuel, not longer than 10 minutes and less than that if flying.

What we have on the website is correct per the manufacturer website.

2 years from DOM.

Decalin RunUp is miscible in all proportions and compatible with both 100LL and Unleaded Autogas. There is no limitation. Add RunUp in proportion to how much 100LL you have, at = oz per 10 gallons of 100LL.