From turbo builds to daily maintenance hacks — Dieseltee covers the diesel world with raw technical insight and zero corporate speak. Based in Madrid, built for every diesel fan.
Read the BlogOur contributors pick topics from reader questions, forum threads, and real workshop problems — nothing gets written just to fill a calendar.
Wherever possible, we test fixes, parts and setups ourselves before publishing. If we haven't tried it, we say so clearly.
Every article passes through at least one certified diesel mechanic on our team before it goes live. Accuracy over speed, every time.
Articles go live with a clear publish date and are updated when specs change or better solutions emerge. No zombie content left to mislead readers.
Three principles that shape every article we publish
Every spec, torque value, and repair step in our guides is cross-checked against OEM data and confirmed by a mechanic on our team. If something is uncertain, we flag it — we'd rather say 'check with your workshop' than give you bad advice that costs you an engine.
OEM data · Mechanic review · Transparent sourcing
Madrid's ZBE restrictions, Spanish fuel quality quirks, local garage culture — we write with full awareness of what it actually means to drive diesel in Spain today. No copy-pasted UK or US advice that doesn't apply here.
Madrid context · Local regulations · Spanish market
We read every comment and reply to emails. Monthly reader polls decide at least two articles per quarter. If the Madrid diesel community is arguing about something, we're already writing about it.
Open inbox · Monthly polls · Forum-driven topics
Our contributors pick topics from reader questions, forum threads, and real workshop problems — nothing gets written just to fill a calendar.
Wherever possible, we test fixes, parts and setups ourselves before publishing. If we haven't tried it, we say so clearly.
Every article passes through at least one certified diesel mechanic on our team before it goes live. Accuracy over speed, every time.
Articles go live with a clear publish date and are updated when specs change or better solutions emerge. No zombie content left to mislead readers.
Straight from the comment section and inbox
Six content pillars that keep diesel fans coming back every week
Technical breakdowns of common rail, TDI, CDI and older mechanical injection systems — explained with diagrams and real dyno numbers.
Remap guides, intercooler upgrades, DPF considerations and boost pressure tuning — written by people who've actually done it on Spanish roads.
Step-by-step repair walkthroughs for the most common diesel faults: injector cleaning, EGR removal, glow plug replacement and more.
Honest breakdowns of AdBlue systems, Euro emission standards, biodiesel compatibility and Madrid's Low Emission Zone rules for diesel drivers.
We visit and review independent diesel workshops across Madrid and Spain — rating diagnostics, pricing fairness and technical know-how.
Long-form stories about classic diesel trucks, legendary engines, motorsport history and the community of people who refuse to go electric just yet.
Real builds, real problems, real fixes — picked from our most-read issues
Repair GuideOur most-shared article of 2023 walked readers through diagnosing and fixing a notorious camshaft follower failure on the EA189 engine — a repair dealers quote at €800+ that costs under €50 in parts if you know what you're doing.
Tuning StoryWe documented a full Stage 1 remap process on a Seat Leon 2.0 TDI driven daily in Madrid traffic — with before/after fuel consumption data, real-world power figures, and an honest take on whether it's worth it in a city full of speed cameras.
Garage ReviewWe visited eight independent workshops in the Madrid metropolitan area, tested them with the same mystery fault, and ranked them on diagnostic accuracy, communication, and fair pricing. The results surprised us — and apparently our readers too.
Everything you wanted to know before bookmarking us
No. We have no commercial agreements with manufacturers or dealerships. When we recommend a part or workshop, it's because our team has tested or verified it — not because someone paid for placement. Sponsored content, when it exists, is always clearly labeled.
Absolutely — and we encourage it. Use the contact form or email us directly. Reader questions are one of our main sources of article ideas. If multiple people ask the same thing, it becomes the next guide.
Both. Each guide includes a difficulty rating and a tools list upfront. Some procedures we'll recommend only for experienced mechanics or workshops. We never downplay a job that genuinely requires professional equipment or skills.
We cover a wide range — from popular European diesels like VAG TDIs and Mercedes CDIs to commercial vehicles and older mechanical injection engines. Our coverage reflects what readers in Spain actually drive, so European brands dominate but we don't exclude others.
You can become a member via one of our three support tiers. Members get early access to guides, a monthly diesel digest newsletter, and access to our members-only comment threads where contributors answer technical questions directly.
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