3.0L Diesel Owners Look Here..

[ILSilverado]

A little helpful hint. I purchased this cap on Ebay after seeing a little water standing in the filler opening after a car wash. It works well and adds an extra layer of protection from getting water in the tank. I will put up a link soon.  It's an easy friction fit.

https://www.ebay.com/itm/301987903974

Edited March 12, 2020 by ILSilverado

[Kchampagne]

Awesome.  Your link is for a Dodge ram diesel filler cap.  Will this work for the 2020 Chevy/GMC?

[redvettez06]

Great idea! Thanks for sharing it. 

[woychc]

Awesome.  Your link is for a Dodge ram diesel filler cap.  Will this work for the 2020 Chevy/GMC?

Yes. I ordered one off amazon for a dodge diesel and works just fine


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[ILSilverado]

1 hour ago, Kchampagne said:

Awesome.  Your link is for a Dodge ram diesel filler cap.  Will this work for the 2020 Chevy/GMC?

That is a photo of it on my 1500 yes it fits great.

[Kchampagne]

Perfect. Thank you.  I just ordered one. 

[OnTheReel]

I had one for my gasser with the capless system. To me it was cheap insurance. But everyone says that there is a second filler tube door down further, and a trap so virtually no water can be pushed down into the tank. Not sure about that but I stopped using the cap out of laziness alone.

[yousaveone]

There is indeed a system in place that works to keep water out. In fact if you want to add fuel from a gas can or an additive you have to use a long funnel otherwise it pours out on the ground. A cheap plastic funnel should have been included with your truck. 

[Chrisd534]

Awesome thanks! Was looking for these but didnt want to take a chance on the dodge ones glad they work! Purchased

[Londart2020]

On ‎3‎/‎12‎/‎2020 at 5:17 PM, yousaveone said:

There is indeed a system in place that works to keep water out. In fact if you want to add fuel from a gas can or an additive you have to use a long funnel otherwise it pours out on the ground. A cheap plastic funnel should have been included with your truck. 

I agree, my 2017 F150 came with a funnel for just this reason.

[ArTurf]

31 minutes ago, Londart2020 said:

I agree, my 2017 F150 came with a funnel for just this reason.

I noticed there's a funnel in the glove box of my 2020 Silverado too

[Londart2020]

2 minutes ago, ArTurf said:

I noticed there's a funnel in the glove box of my 2020 Silverado too

Oh really, I guess I will have to check. thanks.

[ArTurf]

19 minutes ago, ArTurf said:

I noticed there's a funnel in the glove box of my 2020 Silverado too

It's a 6.2 BTW

[harry65]

On 3/16/2020 at 10:05 PM, ArTurf said:

I noticed there's a funnel in the glove box of my 2020 Silverado too

Yep, had one in mine too.  I think I need another though for the Def fluid??

[yousaveone]

DEF has a cap and is a designed the same as a traditional system.