Remington CroftHow to Do The Penny Test Correctly
Last updated: September 16, 2026 — rechecked against Goodyear and Bridgestone measuring guides, Tire Rack wet-test data, NHTSA tips and updated where details changed.
Reviewed by Emily Holmes, General Reviewer, following our test method.
A practical walkthrough for how to do penny test on tires: penny test, Lincoln, quarter test in plain order, the main options compared side by side, and the mistakes that cause redos flagged up front. Pick one option from the table and work it fully.
Quick answer: compare paths first using the table below. Confirm fit against penny test, Lincoln, quarter test, groove. Check the mistakes section before you commit. Details and FAQs below.
What Penny Test Shows
Pick one path first — that choice matters more than any single tip below. The table maps the main options; the sections below resolve fit and failure modes.
Video: How to Check Your Tire Tread at Home, The Penny Test Explained — Bob Ruth Ford, May 2026.
| Method | Key Points | Best For |
|---|---|---|
| What Penny Test Shows | Main checks for what penny test shows — full detail in the section below | See whether this matches your case below |
| Step By Step Placement | Main checks for step by step placement — full detail in the section below | See whether this matches your case below |
| Reading Lincoln Head | Main checks for reading lincoln head — full detail in the section below | See whether this matches your case below |
Related: How to Check Tire Tread Depth at Home in 2026 (Penny, Quarter, Gauge).
Heads-up: penny test, Lincoln, quarter test, groove differ from case to case, so use the steps here as the reliable core and confirm current specifics in Sources before you decide.
Step By Step Placement
Work through penny test, Lincoln, quarter test in order: confirm the starting point, run the steps once without skipping, then verify the result before moving on.
- Use it when: your case matches this option.
- Skip it when: another option below fits better.
- Spec to confirm: the one detail readers get wrong here — check it in Sources.
Reading Lincoln Head
For reading lincoln head, define the goal, try the smallest complete version first, and check it against penny test, Lincoln, quarter test before continuing. Where details vary, verify specifics in Sources.
Quarter Test Alternative
For quarter test alternative, define the goal, try the smallest complete version first, and check it against penny test, Lincoln, quarter test before continuing. Where details vary, verify specifics in Sources.
Common Placement Errors
The failure modes for how to do penny test on tires are consistent: wrong prerequisites, skipped verification, and mixing two paths. Guard each explicitly.
- Wrong prerequisites: confirm fit before starting; backtrack costs more than checking.
- Skipped verification: test the result at each step instead of batching checks at the end.
- Mixed paths: pick one option from the table and finish it; mixing two halfway causes most redos.
FAQs About Penny Test
For faqs about penny test, define the goal, try the smallest complete version first, and check it against penny test, Lincoln, quarter test before continuing. Where details vary, verify specifics in Sources.
Setup Tips to Get Better Results Faster
Prep beats rework here: gather what you need once, note your starting point, keep penny test, Lincoln, quarter test in mind while you work, and stop at the first unexpected result to re-check fit.
How To Do The Penny Test Correctly FAQ
What is the fastest way to handle this?
Start with the comparison table, pick one path, and finish its checks fully. Switching mid-way is slower than one clean pass.
What do most guides miss here?
Most short guides skip the fit checks — penny test, Lincoln, quarter test. The sections above cover them so you don't have to piece it together from five tabs.
When should I choose a different option here?
When your situation points to another option below — use the related guide for that option instead of forcing this one to fit.
Where can I verify current details?
Use the primary sources in Sources below — provider pages and official references change faster than any guide.
Penny test vs quarter test — which?
Penny checks the 2/32 legal floor (Lincoln's head), quarter checks the 4/32 wet-safety line (Washington's head). Use the quarter for real safety margin.
Bottom Line
Compare the options first, confirm fit against penny test, Lincoln, quarter test, then check the mistakes section. Use the related guides below for background and nearby options.
Related Guides
Sources: verify current details in primary references for how to do penny test on tires — Tire maker guide plus editorial coin test plus primary NHTSA tips. Evidence is thin where providers differ; prefer official pages over aggregators.