Free API

Changelog

What's new

This site ships fast — sometimes an integrator asks for a feature on a Thursday and it exists by Saturday. Here's what's landed recently, and below that, everything OLP does in one list.

20 updates since July · latest September 14, 2026

Latest · Tools · September 14, 2026

Emergency Neutral, now a three-step picker

Stuck in Park with a dead battery? Pick your make, model and years and go straight to the override procedure for that exact car, instead of scrolling a wall of brands. Same steps, far fewer taps when you are stranded.

September 2026

September 14, 2026
API

Imported cars decode correctly from their VIN

Korean, Japanese and German-built cars sold in North America now decode through NHTSA instead of a best guess, so a VIN lookup lands on the right engine. And when a nameplate is right but the year is outside what we hold, the API now says so and names the models that do cover that year.

API docs
September 13, 2026
Library

Model books: the Dodge Viper and the Mercedes G-Class

Two long-form, fact-checked complete guides in the Car Library: every Viper generation from the 1992 RT/10 to the 2017 ACR, and the G-Wagen from the 1979 military-spec original to the current AMG G63. What changed each year, what breaks, and what to buy.

Open the library
September 13, 2026
Accuracy

Power-steering jobs removed from electric-rack cars

Every vehicle now carries its real steering type. Over 46,000 pump, hose, reservoir and fluid-flush entries were removed from cars that have electric racks and never had any of those parts. A 2017 Suburban no longer offers you power-steering fluid.

How our data works
September 13, 2026
Coverage

Haldex and AWD coupling service, oil and filter

377 all-wheel-drive Audis, Volkswagens, Volvos, Land Rovers and Skodas now list the coupling service on their own, with the coupling oil spec, the refill capacity, and the small filter most guides forget.

Look up your car

August 2026

August 29, 2026
API

Maintenance schedules, mileage-aware

A maintenance-schedule endpoint that returns factory service intervals for your vehicle and marks what is due at the mileage you pass in. Built for fleet tools and service-reminder apps.

API docs
August 26, 2026
API

Oil, air and cabin filter part numbers

OEM filter part numbers with cross-references to the major aftermarket brands, by vehicle and engine, through the filter-specs endpoint.

API docs

July 2026

July 30, 2026
Diagnostics

The CAN Bus Playbook

Network diagnostics all in one place: what 60Ω, 120Ω and 0Ω at the DLC actually mean, every CAN-H/CAN-L scope signature — shorts to ground and battery, missing terminators, babbling modules, sleeping buses — plus the DLC pin map, U-code pattern reading, and per-make network maps for 30 makes (which buses, gateway, what breaks).

Read the bus
July 27, 2026
Diagnostics

BMW hex codes & CC-ID messages, decoded

The codes cheap scanners spit out that generic sites can't translate — BMW internal hex faults (2A87, 29E0…) and the full CC-ID dashboard message library — now resolve right here, each with its OBD equivalent, symptoms, causes, and what to check first. VAG 5-digit codes too.

Look up a code
July 26, 2026
Diagnostics

880+ new trouble codes, generic and manufacturer-specific

Every generic OBD-II range is now complete, plus deep manufacturer-specific fills (P1, body, chassis, network) for 15 brand families. Every code carries symptoms, ranked causes, and ordered diagnostic steps — not just a name.

Browse DTC codes
July 26, 2026
Diagnostics

17 system diagnostic playbooks

Fuel, ignition, charging, starting, cooling, transmission, body electrical and more — each with a symptom table, the diagnostic order that prevents parts-cannon spending, the classic mistakes, and that system's codes. Written for techs and serious DIYers.

Pick a system
July 25, 2026
Diagnostics

The A/C Gauge Playbook

Every manifold gauge scenario as a visual chart — both low, both high, needles converging, low side in vacuum, rapid cycling — with causes ranked and next checks. Tap any scenario to enlarge it right at the workbench.

Read the gauges
July 25, 2026
API

Engine-code lookup across VAG badges

One factory engine code (CJXA, CCTA…) returns labor data for every vehicle sharing that engine across VW, Audi, SEAT and Škoda — because they're the same machines wearing different badges. API: labor-times?engine_code=CCTA.

API docs
July 25, 2026
Coverage

European nameplates: Leon, Polo, T-Roc and 16 more

SEAT Leon, Alhambra and Toledo, VW Polo, T-Roc, Touran, Sharan and ID.3, Škoda Yeti, Rapid and Enyaq, and more — built from their platform twins with diesel variants included and fuel-aware data (no spark plugs on a TDI).

Find your car
July 24, 2026
API

The API forgives your slugs now

Send a VIN and a plain-text job ("brake pads") and skip slug lookups entirely. Trim-suffixed models auto-correct, near-miss engine slugs resolve, non-US regions fall back to US data, and every 404 tells you what IS available. Every assist is reported in the response.

See what changed
July 24, 2026
Coverage

Every exotic labor time, frontier-model audited

The complete Lamborghini, Ferrari, McLaren, Aston, Bentley, Rolls-Royce, Maserati and Lotus catalogs went through a full precision audit calibrated against real exotic-shop invoices — over 60,000 times corrected, and 38 special-series submodels added (Huracán STO, 488 Pista, F12tdf, the Black Badge family…).

Browse the exotics
July 24, 2026
Accuracy

The great non-applicability purge

Roughly 1.5 million entries for parts vehicles never had — leaf springs on unibody sedans, kickdown cables on modern automatics, VVT on carbureted classics — removed catalog-wide. If a job is listed on your car now, your car actually has that part.

How our data works
July 23, 2026
For businesses

OLP for Dealerships

Dealer techs told us the same thing: pulling a book time on their phone beats the walk to the OEM terminal. The honest arithmetic, what fits (and what doesn't), and three rollout paths — starting with "it's free, bookmark it."

The dealer page
July 22, 2026
Accuracy

Honest data-quality labels on every labor time

Every time now wears its confidence: Verified, Calibrated, or Book-style estimate — with a one-tap way to flag anything that looks off. Corrections get reviewed by a human and propagate to sibling vehicles.

See it on any labor page
July 2026
Coverage

ADAS calibration requirements, verified

Which windshield, bumper or mirror jobs on 2016+ vehicles require ADAS calibration — every entry individually verified before it shows. Rolling out across 838 models and counting.

On the labor pages