r/Diesel is a subreddit with 120k members. The community frequently discusses diesel, truck, 7.3, engine, and cummins, and they frequently recommend/review truck, battery charger, and obd2 scanner, and the most common flair used is question/need help!, meta, purchase/selling advice, meme/joke, and show off your build.
Welcome to /r/Diesel, reddit's home for everything about compression motors!
Popular Topics in r/Diesel
#1
Diesel
91 posts
#2
Truck
38 posts
#3
7.3
32 posts
#4
Engine
27 posts
#5
Cummins
24 posts
#6
Powerstroke
21 posts
#7
6.7
18 posts
#8
Turbo
16 posts
#9
Fuel
14 posts
#10
Looking For
12 posts
Products Discussed in r/Diesel
Truck
25 reviews
#1
Ford
3.5★ from 12 reviews
#2
Ram
4.5★ from 4 reviews
#3
Chevrolet
4.7★ from 3 reviews
Battery Charger
11 reviews
#1
Harbor Freight
4.5★ from 2 reviews
#2
CTEK
4.5★ from 2 reviews
#3
NOCO
5.0★ from 2 reviews
Obd2 Scanner
5 reviews
#1
Edge
4.0★ from 1 review
#2
Xtool
4.0★ from 1 review
#3
Diesel Scanners
5.0★ from 1 review
Flair Used in r/Diesel
#1
Question/Need help!
: "Why is diesel more expensive than gasoline?"
30 posts
#2
Meta
: "Genuinely asking, what'll happen? This can't be sustainable, even the corporate heads know that this will hurt their profits."
8 posts
#3
Purchase/Selling Advice
: "dealing with 7$/gallon diesel"
4 posts
#4
Meme/Joke
: "Tell me a car/truck that’s tougher and more loyal than Slave Lake"
3 posts
#5
Show off your build
: "8 minutes of diesel rumbles to listen to while you sleep"
2 posts
#6
Question - Solved!
: "Dealing with 7$/gallon diesel"
1 post
#7
Rolling Coal (BAN ME)
: "Diesel Delete Question"
1 post
Member Growth in r/Diesel
Yearly
+17k members(16.7%)
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About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/Diesel, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: September 20, 2026