Frequently Asked Questions

No. Wrenzo helps organize symptoms, vehicle history, possible next steps, and questions to ask. It does not replace a professional inspection or repair diagnosis.

No. Diagnosis is one part of Wrenzo, but the larger goal is to help you manage vehicle ownership: track maintenance, save repairs, store reminders, attach receipts or photos, keep vehicle specs, and preserve useful records over time.

A saved diagnosis becomes an issue in that vehicle history. From there, Wrenzo can help you follow it through reminders, repairs, notes, attachments, and resolution instead of leaving it as a one-time result.

A diagnosis or report is the result Wrenzo creates from symptoms, vehicle details, and safety references. An issue thread is what happens after you decide to track that problem on a vehicle. It gathers related reminders, repairs, notes, and status updates so you can see how the issue moved from symptom to follow-up to fix.

A project thread is for longer-running vehicle work that has a plan, not just a single completed record. Use it for builds, restorations, upgrades, swaps, major refreshes, or anything with a checklist, parts list, target date, budget, attachments, time spent, and project updates.

Issue threads are for tracking a problem from symptom to resolution. Project threads are for planned work that may include many steps, parts, costs, and updates. When a project is finished, Wrenzo can keep the thread details as the planning record and add a clean project entry to the vehicle history.

Wrenzo looks at the vehicle history, issue threads, reminders, service intervals, recalls, odometer, and basic setup details. Open issues, open recalls, overdue reminders, or overdue intervals can move a vehicle to Needs attention. Planned work, due soon reminders, or due soon intervals can move it to Needs review. If the vehicle is missing basics like odometer, VIN, history, or a maintenance plan, it may show Needs setup. If none of those apply, it shows Healthy.

Open a vehicle from your Garage, then select the color-coded health badge on the vehicle photo. You can also open the Tools tab on that vehicle and select Health. The snapshot shows the vehicle status, counts for open or upcoming items, and shortcuts to the related sections.

You can track completed maintenance, repairs, notes, reminders, costs, odometer, parts, time spent, receipts, and attachments. This makes it easier to see what has already been done, what is still open, and what may be due next.

Yes. Time spent on completed project checklist items is included in the project total and can contribute to the vehicle logged-hours summary. That keeps a long build or restoration from disappearing just because the work was planned inside a project thread instead of as separate history entries.

When you save a completed maintenance or repair entry, or add a fuel or charge log, Wrenzo checks the odometer on that record. If it is higher than the odometer currently saved in your Garage, Wrenzo advances the vehicle odometer automatically. Blank or lower odometer values will not move the vehicle backward, and reminder due odometer is treated as a target rather than the current odometer.

Wrenzo calculates fuel economy or charge efficiency by comparing odometer changes between logs with a recorded fuel or charge quantity. If the logs do not include enough odometer and quantity data yet, Wrenzo may show that efficiency is not ready instead of guessing.

Wrenzo compares a vehicle against its own recent fuel or charge logs. Once there is enough odometer and quantity data, Wrenzo looks for a meaningful drop in the latest usable efficiency readings compared with that vehicle's recent baseline. It does not currently compare against EPA ratings, because real-world driving, weather, tires, cargo, towing, and charging conditions can vary a lot. If efficiency drops, Wrenzo may suggest adding an issue so you can track follow-up checks.

Wrenzo keeps symptoms, checks, fixes, parts, costs, and follow-up notes in one place. That helps DIY owners avoid repeating work, remember what fixed an issue, and prepare clearer information if a job eventually needs a shop.

Vehicle details help tailor results, safety checks, records, and search shortcuts. VIN can also auto-populate year, make, model, and engine details when available. Trim level stays optional so you can enter the clean name you recognize.

Yes. Wrenzo supports CSV import with a preview step that checks required fields, duplicate VINs, vehicle matching, and VIN-based detail lookup before anything is imported.

A share lets you create a read-only view of a vehicle logbook so someone else can review useful history without taking ownership of the vehicle in Wrenzo. It is helpful for mechanics, family members, or a buyer who needs to see records before you transfer anything.

A transfer is for handing a vehicle and its saved history to another Wrenzo account. The recipient can accept the transfer, and the vehicle moves into their Garage with its logbook context attached. Until a transfer is accepted, you can cancel it from the vehicle tools.

Quick-log QR codes are vehicle-specific shortcuts that open a mobile-friendly logging page for that vehicle. Free accounts can keep 1 active Quick QR, while Pro and Plus can create the full set of Quick QR actions for saved vehicles. They are useful if you want to scan from the garage, driveway, or glovebox and quickly add maintenance, reminders, or fuel and charge logs without digging through the app first.

Free includes 100 MB of attachment storage for photos and documents. Pro includes 500 MB for receipts, photos, and documents. Plus includes 1 GB and adds video attachments for larger personal garages. Very large storage use, automated imports, commercial use, or fleet-style use may require review or a separate plan.

Many drivers already track repairs or maintenance in Excel, Google Sheets, notes, or exported shop records. Import lets you move that history into Wrenzo so it can become searchable vehicle history, reminders, and ownership context instead of staying in a separate file.

Yes. Wrenzo is designed to work on desktop and mobile browsers, so you can review history on a larger screen, then pull up the same vehicle details, reminders, or records from your phone when you are in the garage, driveway, or at a shop.

Wrenzo is designed with mobile use in mind, so the web app already works well from a phone browser without downloading anything. On iPhone, open Wrenzo in Safari, tap Share, then Add to Home Screen. On Android, open Wrenzo in Chrome, tap the three-dot menu, then Add to Home screen or Install app. Native iOS and Android apps are being developed.

Deletion is immediate and irreversible. Wrenzo removes your account profile, vehicles, records, history, reminders, attachments, and preferences.