Don't Be Gelling This Winter - Chevy and GMC Duramax Diesel Forum
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post #1 of 1 (permalink) Old 11-11-2019, 09:05 AM Thread Starter
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Don't Be Gelling This Winter

7 TIPS FROM OPTI-LUBE TO HELP PREVENT GELLING UP!

With Colder weather forecasted for most of the country this week, here are a few tips that might help everyone out, whether you use Opti-Lube or not.

-MIXING AT THE RIGHT TIME:
With Anti-Gel additives, the biggest mistake is not mixing at the right time/temperatures. Both the fuel AND the Anti-gel (like Opti-lube XPD or Winter Blends) need to be above the cloud point (generally above 40F) to mix right and chemically do their job to prevent gelling. Both the Diesel Fuel and the Additives can freeze without each other. Make sure to mix them at the time you are filling up (pump fuel is generally above 40F coming out of the ground), or when your truck has been in a warm garage for a while. If either the fuel or anti-gel is below the cloud point, it's to late and you need to warm them both up first.

-FUEL FILTERS:
The 2nd mistake that some make is installing aftermarket small micron fuel filters and not expecting them to gel easier in the cold months. Smaller Micron fuel filters raise the risk of gelling exponentially. We fully understand the need to protect your fuel system from harmful contaminants in the fuel, but the smaller you go on the filter, the more risk of gelling. So it's a trade off. If it's an option on your vehicle, using higher micron filters (5-10 micron) can help prevent gelling during the cold weather. We ourselves run Aftermarket Lift Pumps, but they can become "Gel Collectors" in the winter months.

-ALWAYS PLUG IN:
Always plug in your truck on cold nights. However, on most vehicle, plugging in your truck does nothing to keep the fuel in the tank warm while sitting. Once started, it will help the fuel warm up faster as it returns back to the tank, but it may not prevent gelling in time. When you plug in your truck it just keeps the engine block and oil warm to assist in startup and warming up faster.

-IF YOU GEL UP:
Once you have gelled, you either need to replace the fuel filter (best option and always keep a spare on hand) or use an Emergency type product (like Opti-lube Gel Melt) to reliquify the gel in the filter and help break up whats in the tank. The Gel in a Filter, will generally NOT all go away on its own while using #2 Diesel Fuel. That is why changing the filter is best. Also, not running a filter at all, just to get where you need to go.....is a big NO-NO. Don't risk it!

-#1 DIESEL FUEL:
Using #1 Diesel can be a huge help in the winter to prevent gelling and keep you running. Many states switch to #1 Diesel or a Blend for the cold months. #1 Diesel Fuel is generally close too, or pure 100% Kerosene. Blended Winter Diesel Fuel is a percentage of #1 and #2 Diesel Fuel. While Kerosene has a much lower cloud point and will prevent gelling to really low temperatures, it can be very "dry" with little lubrication. We would suggest using an Additive like Opti-lube XPD or Winter Blend, to keep things lubed up to protect your pump and injectors from damage.

-BIO DIESEL:
Many states are now requiring a small percentage of Bio Diesel to be in the Diesel fuel sold at the pump. Most do not even list that they do so at the pump. Bio Fuel, even when as low as B5 (5% bio, 95% Regular Diesel) has a much higher cloud point than non bio fuels and can gel much sooner than regular Diesel fuel. Running an Anti-Gel like Opti-lube XPD and Winter Blend will be good insurance to keep you running. Also keeping some Opti-Lube Gel Melt and a spare fuel filter is always smart for emergencies.

-OVERDOSING ON ADDITIVE:
Finally, It doesn't hurt to Overdose on most Anti-Gel Additives for the coldest days. It seems that Diesel Fuels have contained more wax than they did past years. Adding more additive than listed on the bottles label may be needed depending on the circumstances, temperature, fuel source, and vehicle setup.

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We hope some of these tips help some while the cold is upon us.

Synthetic Motorsports
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