Fuel and Engine Model of Marketing
Reduce all of marketing to two questions: do you lack valuable things to say, or a way to distribute them?
- Difficulty
- Easy
- Time to result
- ~weeks to results
- Steps
- 4
- Confidence
- 95%
Instead of drowning in marketing sub-functions (product marketing, demand gen, content, growth), collapse everything into two buckets. Fuel is everything you create that adds value (content, positioning, copy, templates, tools). Engine is how you distribute it and track it (channels, email drips, SEO setup, ops). Diagnose which side is your biggest constraint before hiring or spending.
Origin
Emily Kramer's own framework, developed across building marketing from scratch at Asana, Carta, Ticketfly and Astro; she publishes the diagram in her MKT1 newsletter.
Core principles
- 01You need both fuel and engine — an engine with no fuel sends empty outbound; fuel with no engine is content nobody sees
- 02Most initiatives contain both a fuel component and an engine component
- 03Diagnose the binding constraint before you hire or spend
- 04The business model dictates which side you likely lack (top-down sales teams already have a crude engine in SDRs; PLG teams often need more engine to capture existing demand)
How to run it
- 1
Forget the sub-function labels
Drop the vocabulary of product marketing, content marketing, demand gen, growth, partner marketing. Reframe marketing as just two things: fuel (what you make) and engine (how you distribute it).
Pro tip Marketing ops and reporting work go under 'engine' — they instruct and optimize distribution.
- 2
Classify your activities
Sort each activity as fuel, engine, or both. Copy, blog posts, templates, calculators, positioning and messaging are fuel. Email segmentation rules, SEO keyword lists and technical SEO, channel selection, and HubSpot setup are engine. A Slack community can be both.
Pro tip Content is broader than blog posts — tools, resources, templates and calculators often outperform posts as fuel.
- 3
Diagnose the binding constraint
Ask: where is your biggest challenge, or where would doing more make you grow faster — fuel or engine? Ask diagnostic questions: what's your top-performing content? Can you state who the product is for, why it's better, how it compares? How does the marketing-to-sales handoff work?
Pro tip If founders can't name top-performing content or articulate positioning, it's a fuel problem. If they made great content but 'shared it on social and it didn't go anywhere', it's an engine problem.
- 4
Hire or invest against the gap
Direct your first hire, contractor, or spend at the constrained side. If founders are great at making original content and early positioning, they need an engine person to distribute it.
Watch out Don't build an engine with no fuel (blasting outbound with nothing valuable to say) or make fuel with no engine (writing blog posts you never distribute).
In the wild
A team builds an engine first — sending many outbound emails — and asks why it isn't working. The diagnosis: they have no fuel, nothing valuable to put in those emails.
→ The activity is wasted until fuel (a valuable message worth sending) is created.
A team writes a bunch of blog posts and makes a lot of content, then complains the content doesn't work. Asked how they distribute it, they say they shared it on social and it didn't go anywhere.
→ An engine problem, not a content problem — the fuel exists but is never getting mileage through distribution.
Common mistakes
Building an engine before you have fuel
Teams stand up outbound sequences and channels while having nothing valuable to say, then blame the channel when it converts poorly.
Producing fuel you never distribute
Teams pour effort into blog posts and content but never build distribution, so great material dies on the website and the work is wasted.
Is it for you?
Best for
Founders or first-time marketing hirers at a B2B startup trying to figure out what to build or who to hire next in marketing
Not ideal for
Late-stage companies with fully staffed, specialized marketing orgs where the constraint is optimization within a function, not the fuel-vs-engine balance
From the transcript
“forget the product marketing content marketing partner demand gen growth like forget all of it and just think of marketing as you need fuel and…”
“an engine is how you get it out to the right people and all of the tracking of that and sort of the ops work…”
“the question is where do you have the biggest challenge right now or where do you think if you did more you would grow faster…”
“why isn't this working we're sending so (10:00) many outbound emails and it's like well you don't have anything valuable to put in those you…”
“this content doesn't work it's like well have you tried distributing it because if you're not distributing that and getting mileage out of it it's…”
From the episode
How to build a powerful marketing machine
Emily Kramer (Asana, Carta, MKT1)