So just picked up a new 2019 3500 SRW diesel on Friday. I grew up around cars, my dad is a GM mechanic, but know nothing about diesels.Does anyone have any advice as far as fuel treatments for summer and winter months? I have been doing some research on the fuel gelling and wonder what people use for this? Also, sounds like the DEF freezing is not much of an issue? With the nice -30 weather we are getting now I want to prevent any issues.Thankfully this is not a daily driver and will most likely be stored for a majority of the winter months (and recommendations for storage) but we are planning on picking up a new (used) 5th wheel this weekend and want to be prepared.Thanks!

I don't think there's really anything you can do in -30 weather to make a diesel engine run better. Keep your batteries fully charged and fresh and plug it in and hope for the best. Keep the truck inside if you can.Fuel is already treated for winter and you'll notice a reduction in fuel mileage.

Would think in your part of the country winter blend diesel fuel is what's currently sold. Winter blend is formulated either by the addition of kerosene or an additive package to lower the cloud point temperature (waxing/gelling). If addition of a fuel additive gives you peace of mind..... but check the vehicle owners' manual first!

No 1 diesel use a fuel additive synthetic oilplug in your rig at nightI like the fuel additive in the white bottle sold at any truck stop. It takes out water from the fuel, helps prevent wax formation and adds some cetane.

Run full synthetic oil and don't worry about the diesel or any additives - if you live in a cold climate the stations will sell winter blend diesel in the winter months.

Cold weather and diesel advice | Good Sam Community

47 Replies

colliehauler
Explorer III
Jan 29, 2019
I like to use Power Service in the white bottle of a winter available at Walmart if I'm going to use the Diesel of a winter. My fuel is usually summer blend since the gas trucks are almost used exclusively in winter. I would plug in the block heater as well.
puddleduck
Explorer
Jan 29, 2019
I have a 100 gallon transfer tank so I keep track of where I bought the fuel and when. If I have southern Texas fuel in the tank when I go back to Colorado in the winter I add anti gel.
IdaD
Explorer
Jan 29, 2019
Run full synthetic oil and don't worry about the diesel or any additives - if you live in a cold climate the stations will sell winter blend diesel in the winter months.
ppine
Explorer II
Jan 29, 2019
No 1 diesel
use a fuel additive
synthetic oil
plug in your rig at night

I like the fuel additive in the white bottle sold at any truck stop. It takes out water from the fuel, helps prevent wax formation and adds some cetane.
ppine
Explorer II
Jan 29, 2019
repeat
thomasmnile
Explorer
Jan 29, 2019
Would think in your part of the country winter blend diesel fuel is what's currently sold. Winter blend is formulated either by the addition of kerosene or an additive package to lower the cloud point temperature (waxing/gelling).

If addition of a fuel additive gives you peace of mind..... but check the vehicle owners' manual first!
twodownzero
Explorer
Jan 29, 2019
I don't think there's really anything you can do in -30 weather to make a diesel engine run better. Keep your batteries fully charged and fresh and plug it in and hope for the best. Keep the truck inside if you can.

Fuel is already treated for winter and you'll notice a reduction in fuel mileage.

Forum Discussion

Cold weather and diesel advice

47 Replies

About Travel Trailer Group

Related Content

1994 Safari Continental diesel pusher

Diesels in cold weather

Storing My Diesel Truck Over Winter Advice

Diesels and cold weather

Cold (Fridid) Weather Start Diesel?????