G-Spec - Car Maintenance Specs
Duc Loc Bui Utilities iPhoneiPadiPod touch
G-Spec - Car Maintenance Specs is a free Utilities app for iPhone and iPad by Duc Loc Bui. Requires iOS 16.4. Updated September 23, 2026.
- Price
- Free
- on the App Store
- Size
- 47 MB
- Age 4+
- Updated
- Sep 23
- 2026 · v1.0.6
Screenshots
About G-Spec - Car Maintenance Specs
Look up car service specs in seconds. G-SPEC helps workshops and technicians quickly find the exact specs they need for car servicing, repair and care. Choose the make, model, year, engine and gearbox to see information that matches the vehicle's configuration. From engine oil and transmission oil to battery, air conditioning, wheels and tyres, and wipers - the specs you need are gathered in one app. No more flipping through manuals in the middle of a job. OILS AND FLUIDS All eight oils and fluids of a full service, each with its standard and capacity: - Engine oil: SAE viscosity grade, API standard, ACEA standard, OEM approval and oil capacity. - Transmission fluid: ATF, CVT fluid, dual-clutch or manual gearbox oil, with SAE and API standards, OEM approval and capacity. - Transfer case fluid: SAE and API standards, OEM approval and capacity for four-wheel-drive vehicles. - Front and rear differential oil: SAE and API standards, OEM approval and separate capacity for each axle. - Coolant: standard, coolant technology, colour and capacity. - Brake fluid: DOT standard. - Clutch fluid: standard, for vehicles with a hydraulic clutch. - Power steering fluid: hydraulic, electric or manual steering, with the fluid standard. - Drain plug torque and related specs. BATTERY - Battery size and capacity. - JIS and DIN standards. - Cold cranking amps. - Vehicles with a second battery list both. CAR AIR CONDITIONING Key specs of the A/C system: - Refrigerant type, including R134a and R1234yf. - Refrigerant charge. - Compressor oil type: PAG, POE or PVE. - Compressor oil amount. - Pressure chart by temperature to support diagnosis. WHEELS AND TYRES - Front and rear tyre sizes. - Recommended tyre pressure. - Rim size, PCD and offset. - Centre bore. - Wheel nut torque and socket size. WIPERS - Front and rear wiper blade sizes. - Mount type. SERVICE SCHEDULE Look up the service schedule by mileage, the items to carry out and what each service level includes. LOOK UP BY VEHICLE CONFIGURATION Choose: Make → Model → Year → Engine → Gearbox G-SPEC narrows results to the vehicle configuration, saving search time and avoiding mix-ups between versions. BRANDS COVERED Data covers mainstream and premium makes: Toyota, Hyundai, KIA, Mazda, Honda, Ford, Mitsubishi, VinFast, Suzuki, Isuzu, Nissan, Chevrolet, Peugeot, Subaru, Volkswagen, Skoda, Volvo, MG, Haval, GWM, Geely, Omoda, Jaecoo, Beijing, GAC, Hongqi, Mercedes-Benz, BMW, Audi, Lexus, Land Rover, Jaguar, Porsche, MINI, Genesis, Infiniti, Acura, Jeep, RAM, Dodge, Chrysler, Cadillac, Renault, Daewoo and more. FAST LOOKUPS - Recently looked-up vehicles appear right on the home screen. - Reopen the vehicles you work on often with one tap. - Results are organised into Servicing, Air conditioning, Battery, Wheels & tyres and Wipers. - Data already viewed is cached on the device, so lookups stay fast where workshop signal is weak. MANY LANGUAGES G-SPEC comes in many languages: English, Vietnamese, Indonesian, Malay, Hindi, Thai, Korean, Japanese, German, French, Spanish, Italian, Dutch, Polish, Turkish, Portuguese (Brazil and Portugal), Swedish, Norwegian, Danish and Finnish. Switch language inside the app under Account. BUILT FOR - Car technicians. - Repair and service workshops. - Service advisors. - Car care centres. - Tyre and wheel shops. - Battery and car air conditioning shops. - Anyone who needs car service specifications. IMPORTANT Specs may vary by market, model year, engine, gearbox and vehicle configuration. G-SPEC data is compiled from manufacturer and partner technical documentation for reference and cross-checking. Always confirm with the manufacturer's official technical documentation before carrying out work. DATA FEEDBACK Send feedback or report data issues inside the app at: Account → Feedback Or via gspec.vn. Terms of Use: https://gspec.vn/en/terms/ Privacy Policy: https://gspec.vn/en/privacy-policy/
What’s new
Version 1.0.6 · Updated September 23, 2026
Performance improvements and new languages.
App privacy
The developer, Duc Loc Bui, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID, User ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
- Purchases: Purchase History
- Contact Info: Email Address, Name
- User Content: Customer Support
Used for: Third-Party Advertising, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Third-Party Advertising, Analytics
Alternatives to G-Spec - Car Maintenance Specs
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| G-Spec - Car Maintenance Specs | – | Free | September 23, 2026 | |
| VinSnipe | – | Free | Oct 14, 2026 | Compare |
| OilFinderPro: Oil Change Help | 4.6 / 5 (5) | Free | Oct 12, 2026 | Compare |
| Partsbond | – | Free | Apr 17, 2026 | Compare |
| Garelog: DIY Car & Bike Log | – | Free | Mar 25, 2026 | Compare |
| Car Maintenance Log - Pitto | – | Free | Jul 13, 2026 | Compare |
| Clean Fast | 5.0 / 5 (1) | Free | Aug 24, 2026 | Compare |