Best Engine in Fix It Up Roblox — Ranked Honestly

There is a moment in every Fix It Up run when you stop fixing lawnmowers and start doing math. Ten minutes of wrenching, a payout that barely covers a sandwich, and the same three bolts over and over. Then you glance across the garage and watch someone rebuild a V8 in one clean sweep and pocket more than you have made all session. That gap — between fixing things and fixing the right things — is what this guide is about.
Here is the honest version. The best engine in Fix It Up Roblox is not the one with the biggest power number. It is the one that pays you the most per minute of your actual time, after parts, after repair kits, and after the mistakes you will absolutely make along the way.
- Rank engines by cash per minute, not horsepower. Parts cost and repair time quietly decide everything.
- The V8 is the best all-rounder once you can comfortably afford its parts.
- Electric motors are the sneaky best value where they exist — fewer moving parts, faster jobs, less downtime.
- The V12 is a flex, not an investment. Skip it until money stops mattering to you.
- Upgrade your tools first. A good wrench on a bad engine beats a bad wrench on a good one, every single time.
What “Best Engine” Actually Means Here
Four numbers decide whether an engine deserves your time. Payout per completed job. Cost of parts and repair kits. Total repair time from first bolt to final tighten. And the unlock requirement — level, license, or a one-time purchase.
Miss any one of those and the whole ranking collapses. A V12 with the biggest payout number on the board is a terrible pick if a single rebuild eats two hours and swallows your parts budget. A boring little inline-four that finishes in forty seconds can out-earn it across an evening, easy.
The math is refreshingly simple: payout minus parts, divided by time. That is your real hourly rate. Everything below is ranked on that basis, with a little wiggle room for fun, because this is a game and not a tax return.
One caveat worth saying out loud — developers tweak payouts constantly. Treat these rankings as structure, not scripture. And if you enjoy that particular brand of rule-reading anxiety, some versions gate the good engines behind permits and registration, which is grindy but nowhere near as confusing as the rules on revoking citizenship. At least a blown gasket stays blown.
| Engine | Typical Payout | Parts & Kits | Job Time | Honest Verdict |
|---|---|---|---|---|
| Inline-4 (starter) | Low | Very low | Fast | Fine for your first few levels, then move on |
| Turbo Inline-4 | Medium | Low | Fast | Best value in the early-mid stretch |
| V6 | Medium | Low | Medium | Dependable and deeply unexciting |
| Flat-6 | High | Medium | Long | Great pay, fiddly layout, needs steady hands |
| V8 | High | Medium | Medium | The best overall pick for most players |
| Electric Motor | Medium-High | Minimal | Fast | Best cash-per-minute where available |
| V12 | Very high | Very high | Long | A status symbol that slowly bankrupts you |
| Rotary | Varies | Low | Medium | Cheap to fix, wildly inconsistent to profit from |
The Ranking, From “Skip It” to S-Tier
S-Tier: The V8, and Why Everyone Ends Up There
The V8 is the sweet spot the whole game is quietly built around. Payouts are high enough to feel like progress, parts are expensive but not insulting, and a skilled player can knock one out in a couple of minutes. It scales. It forgives. It does not throw surprise fifteen-part rebuilds at you the way some of the fancier blocks do. If you only ever master one engine, make it this one.
A-Tier: Electric Motors and Turbo Inline-Fours
Electric motors are the quiet overachievers. Fewer components, almost nothing to replace, and jobs that finish before your friends have finished arguing about which bolt goes where. The catch is availability — not every version of the game offers them, and unlock requirements can be steep. Turbo inline-fours are the runner-up: cheap parts, snappy repairs, and enough payout to fund your first serious tool upgrades.
B-Tier: V6 and Flat-6
The V6 is the sensible middle child. Nothing about it excites anyone, but it rarely costs you money, and reliability has real value when you are saving toward something bigger. The Flat-6 pays noticeably better, though the layout punishes sloppy play — pistons in awkward places, less room to work, longer jobs. Learn it once you can afford to fail a rebuild or two.
C-Tier: The V12 Myth
Every lobby has someone grinding toward a V12 like it is the endgame. It is not. The payout is genuinely the highest in the game, and the parts bill is genuinely brutal. Miss a single component and you have burned an hour for less profit than three V8s would have handed you. Buy one when money is a scoreboard rather than a resource. Not before.
D-Tier: Rotary Engines and Cheap Mystery Blocks
Rotaries are cheap to repair and maddening to profit from. Payouts swing, jobs drag, and the whole thing feels like gambling with extra steps. The same goes for any engine you bought second-hand because the price looked too good. It was. Cheap blocks usually arrive pre-damaged, and you inherit the repair bill.
The Repair Loop That Actually Prints Money
Engine choice is maybe half of your income. The other half is rhythm.
- Scan before you touch anything. Identify every damaged component first. Wrenching blind costs you double time on the second pass.
- Fix in sequence, not in circles. Work front to back, or top to bottom. Players who hop around lose more seconds than they realize.
- Do not hoard repair kits. A kit used now earns money now. A kit saved for later earns nothing and clutters your inventory.
- Take the boring job. If a V6 is sitting there finished in ninety seconds and a V12 will eat twenty minutes for a similar margin, take the V6.
- Stay in active servers. Busier lobbies mean more jobs spawning and more chances to snipe a high-payout rebuild before someone else grabs it.
Nothing you build is really yours, by the way — no title, no deed, just a slot in the garage and a number that goes up. If you are the sort of person who likes knowing which documents actually mean something, our explainer on what a US citizenship card actually is makes decent reading between repair runs.
Upgrade Order: Tools Before Engines
This trips up almost every new player. Buying a bigger engine with starter tools is like buying a racehorse and hitching it to a shopping cart. The wrench, the lift, and the diagnostic scanner multiply everything you already own.
Rough order that works: faster wrench, then better diagnostics, then the lift, then storage, then the engine. Diagnostics especially — they cut the guesswork that eats your timer, which is the single biggest hidden cost in the game.
Money Leaks That Quietly Ruin Your Run
- Buying parts in bulk you will not use. Inventory sitting idle is cash sitting idle.
- Chasing high-payout jobs you cannot finish in time. A failed rebuild pays nothing and costs parts.
- Ignoring the timer while learning a new layout. Practise on cheap blocks first.
- Upgrading the engine before the tools. Already covered, still the most common mistake in the game.
- Playing tired. Slower hands mean longer jobs, and longer jobs mean worse hourly rates.
Get the V8 running clean, keep your wrench upgraded, and stop measuring yourself against the person with the V12. They are probably broke too — just louder about it.
Frequently Asked Questions (FAQ)
What is the best engine in Fix It Up Roblox for making money?
For most players it is the V8. It balances a high payout with manageable parts costs and a repair time you can realistically beat. Electric motors actually edge it out on cash-per-minute where they exist, but they are not available in every version and often sit behind steep unlock requirements.
Should I save up for a V12 engine?
Not until money stops mattering. The V12 pays the most per job, but its parts bill and repair time are heavy enough that two or three V8 jobs usually beat one V12 job for the same session. Buy it as a trophy, not as your main income engine.