r/DieselTechs is a subreddit with 33k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses looking for, hate, struggling, tired of, and injectors, and they frequently recommend/review multimeter, work boot, and tool brand.
Where diesel techs help other diesel techs with questions, advice, how-tos, and - sometimes - sweet, sweet karma.
Popular Themes in r/DieselTechs
#1
Advice Requests
: "Quiting my job for 421A seeking guidance"
8 posts
#2
Solution Requests
: "Advice needed on wrench storage racks for my 8830EVO Mac Tools toolbox"
6 posts
#3
Pain & Anger
: "So aggravating 😂"
1 post
#4
Opportunities
: "About to get into the diesel tech world but I’ve got two different opportunities for a job and would like some input on which is better"
1 post
#5
Self-Promotion
: "starting a roadside mechanic service"
1 post
Popular Topics in r/DieselTechs
#1
Looking For
18 posts
#2
Hate
4 posts
#3
Struggling
3 posts
#4
Tired Of
2 posts
#5
Injectors
: "Cat C9 Injectors after"
2 posts
#6
Tooling
: "D13 injector cup Tooling question"
2 posts
#7
Diesel Automotive
: "Diesel vs. automotive — would my size make diesel too difficult?"
2 posts
#8
Annoying
1 post
#9
Career_change
1 post
Products Discussed in r/DieselTechs
Multimeter
46 reviews
#1
Fluke
4.4★ from 22 reviews
#2
Klein
4.2★ from 6 reviews
#3
Fluke 87V
4.5★ from 2 reviews
Work Boot
27 reviews
#1
Red Wing
4.9★ from 8 reviews
#2
Danner
4.4★ from 5 reviews
#3
Keen
4.0★ from 2 reviews
Tool Brand
11 reviews
#1
Snap-on
4.7★ from 3 reviews
#2
Tekton
4.0★ from 2 reviews
#3
Mayhew
4.0★ from 1 review
Flair Used in r/DieselTechs
#1
General assistance
: "Anyone know a better way?"
18 posts
#2
Check it out!
: "Electrical....."
9 posts
#3
Diagnostic assistance
: "What’s in our MP8 oil pan"
7 posts
#4
That looks expensive!
: "Endurant mushroom"
1 post
Member Growth in r/DieselTechs
Yearly
+4k members(15.5%)
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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/DieselTechs, including current member size, discussion patterns, product reviews, and related communities to explore.
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Last updated: October 25, 2026