I keep it in sealed box under the back seat to add when I'm at the pump. Add every tank. Every product has different measurements per gallons so just get some small bottles and figure out what you need

 

I put enough in for the ammount of diesel I'm going to put in. Pour the hotshot in first then the diesel. The brand I use fits easy behind the backseat storage panel and doesnt tip over. The container seals very well. No smell issues.

 

I use Schaeffer's additive with every tank...

Diesel Fuel Additives, Treatments & More | Schaeffer Oil

Schaeffer Oil manufactures a complete line of fuel additives, conditioners, and specialty lubricants to help extend engine life and improve fuel economy.

www.schaefferoil.com

 

Me too.. Carbon treat every tank and I'll run some Neutra through once a year or so.

 

I add when I get home, there is enough recirculation to mix. I don't ever want to spill any of the additives in my truck. That's just me.. BTW I have used Diesel Kleen since the truck was new.

 

Optilube XPD user here.

The full kit first purchase with a gallon includes two 8oz bottles and a pump. The pump is about an ounce per stroke of the pump.
I estimate what I think I'll need and bring a small bottle with me some of the time. I'll pour it in, then fill up. Some of the time I'll add it in when I get home. It's not super critical.
For your first application, you add enough fluid for a full tank of 36 gallons. Each fill-up after that is based on how much diesel you add.
Whenever I bring the fluid with me, I do put it in a zip lock bag to keep the smell down.
I run the additive year round, summer mix ratio in spring, summer, fall, and winter ratio in the winter.

 

teapotts... have you seen/used the CarbonTreat Premium All-Season yet?

https://www.schaefferoil.com/documents/45-137CTPA-td.pdf

 

I haven't. Most of the fuel around here is winterized this time of year anyway so I just add summer Carbon Treat all year round. Might have to give it a try when my gallon is out. The small engines especially my little generator loves the neutra.

 

Me too but the All-Season raises Cetane by 5 points!

 

Have you confirmed the cetane raised by 5 points? Did you remove a fuel sample before and after the treatment? Im a bit skeptical about the numbers posted on all, when they say raise Cetane numbers etc?

 

I have been thinking about using the Nuetra since it's has more than 15ppm sulfur...

Neutra Fuel™ Stabilizer Fuel Additive | Schaeffer Oil

Neutra Fuel Stabilizer from Schaeffer Oil is a highly concentrated multi-functional, ashless fuel stabilizer that is specially formulated for use in gasoline, diesel and L.P.G. fuels.

www.schaefferoil.com

No DPF issues for us!

 

Yeah I thought about going with Diesel Treat but it seems to really like the Carbon Treat so I'll probably just stick with that. Has Tony been able to get the all season for you? Is it the same price?

 

Unfortunately, Tony passed away in December. He slipped and fell while getting the mail and hit his head on the curb.

 

Unfortunately, Tony passed away in December. He slipped and fell while getting the mail and hit his head on the curb.


View attachment 1097396

That's really sad.. He lived right around the corner from me. Rest in peace Tony.

 

after it gets under 40 degrees , i put alittle addive in at fill ups and summer i put in additve every other time

 

Ive been using the AMSoil all in one this winter. Definitely only using enough to treat the amount of fuel I added, NOT for the entire volume of the tank. Once spring rolls around and the freezes are over I will use something without the anti-gel in it. But AMSoil says you can use this year round. An entire 16oz bottle is good for 40 gallons @ 2.5oz per gallon. Link below
https://www.amsoil.com/p/diesel-all-in-one-adb/

 

I add hot shots diesel treatment every tank full. I put the measured amount in the tank before filling up the truck. That way it mixes well.

 

I get winterized diesel in North Jersey and I'm still running XPD in every tank. Im not at the recommended 2:1 for winter but I'm about 8oz every 25g. Had a cold start the other day and fuel rail temp read 19 on my L5P when ambient was 9 - started right up with no issue

 

I've used hot shots diesel winter additive for 2 winters. It got down to -20°, and truck started without issue.

 

I use Opti-Lube with Cetane boost at every fill up since the truck was new. Because my truck has a 36 gallon tank, I just put in the amount as recommended for 36 gallons which ends up with a bit of additive overkill but I am OK with that.

As I live in FL, the summer Opti-Lube works fine for my application year round. I always put in the additive prior to fill up as I normally don't fill the truck until it is well below 1/4 tank. As of late, that $110 fuel bill at each fill up is a bit painful.

 

I pour a little FPPF Total Power in the tank before every fill up. You can get a case of 32oz bottles on Amazon for $180. Should last you years.

 

How about Lucas? I use it about every other time.

 

Stanadyne

 

Which additive are wanting to add and why? Are you talking about DEF or fuel additive? The DEF tank will last many thousands of miles and will give you a warning when it gets low. I would not recommend adding anything to the fuel, just not needed.

 

I keep the treatment, double freezer zip lock bagged, in my back seat upright storage cubby along with the container fueling funnel that came with the truck, I also keep an old baby bottle with a cap for measuring. Works great!

It really doesn't matter when you add it, either during fill or after fill since recirculation and sloshing from driving around will mix it quickly. The only thing I don't do is add it and then drive to the fuel station, I don't want to overconcentrate it by that much until I get diesel, and I only add enough (roughly) for the amount of fuel I'm adding except the first time I full dosed since none existed before then.

I use Hot Shots Secret, Every Day Treatment (Spring, Summer, Fall), Winter Anti Gel in Winter, and Diesel Extreme every 6000-ish.

 

And what happens if you don’t use any additive? Nuthin. Take a look in your owners manual. GM also says nothing is needed. Unless it’s for fuel waxing in cold temps of course.

 

Might be true if you have regular access to Top Tier diesel. GM doesn’t recommend aftermarket fuel additives (Of course they don’t).

In the 2021 Diesel Supplement manual, (beginning on page 21), GM specifically recommends AC Delco “Diesel Fuel Conditioner” if Top Tier Diesel can’t be used.

In Colorado (LOTS of diesel trucks here), there are only 2 fuel stations in the entire state that offer Top Tier Diesel (both are in remote towns far from Denver), according to www.TopTierGas.com and I even verified that info by contacting Top Tier directly.

So… it’s a valid issue of concern. These trucks are expensive. Just want to take proper care of it. Can’t fault the OP for that!

 

Seafoam 16 0z. Add 2 cans in everything 3rd fill up. Pour it on just before you fill up. Alternate and use Lucas as well. Congrats on new diesel.

 

Yea sorry thats a lot of work and stuff to remember. Opti-lube XPD before i fill up every time and its nice and easy.

Any company can say anything. I personally tried nothing and my truck sounded like a diesel. The XDP's additive was better, but so far this Opti-lube XPD blend has made my motor feel the "smoothest" so far and has less of a diesel clank to it.

 

I also question if GM really wants our trucks to last as long as previous generations, I believe they may prefer some amount of Planned Obsolescence, and their "good for the life" actual length of life, is about 7 years.

 

Don't forget, they are looking forward to jamming an electric truck down our throats in the coming years, ESG scores ya'll
So if that oil burner takes a crap, more money for them

 

The flip side to that is if they recommend something and something goes bad, someone will turn around and sue them because they recommended it etc. The diesel after market exists for a reason. I can whole heartedly tell you, as a first time diesel owner but life time gear head, my truck runs smoother and feels "softer" running this XPD over nothing - and i use top tier fueling station

 

There are many answers to your question. For me, I buy the 8 packs of XPD. I put one in ahead of each fill-up. I'm not fooling w/ big leaky stinky bottles. They're expensive but you just bought a Rolls Royce. You can't own one if you can't pay for fuel.

 

And I could care less of your factless comments. Did you PIs.s in your cereal this morning before you ate it? you need to relax. Trust me don't believe Everything on a bottle because it's not always true.