May Maintenance Alert: Get Your A/C Road‑Trip‑Ready with LeakFinder! May is the month when “I should fix that A/C” turns into I really wish I had fixed that A/C. AAA forecasts 45.1 million Americans will drive 50 miles or more over Memorial Day weekend alone, 39.4 million of them by car—a new record for holiday road trips. (AAA Newsroom) Add in a National Weather Service outlook calling for above‑normal heat across much of the country this summer (Axios) and a weak dash vent can quickly become a roadside safety issue, not just a comfort complaint.
Why a Pre‑Summer Leak Check Matters
- Heat safety: Cabin temps can climb past 120 °F during a traffic jam; functioning A/C prevents heat stress for kids, pets and drivers alike.
- Component protection: Low refrigerant starves the compressor of lubricant, causing seizures that spray metal shavings through the entire system—often a four‑figure repair.
- Fuel economy & emissions: A properly charged system cycles less often, trimming parasitic load on the engine or high‑voltage battery.
- Travel confidence: Nothing spoils a beach weekend faster than sweating through a six‑hour crawl on I‑95 with the windows down.

Meet the Dye Designed for Summer Tune‑Ups
LeakFinder® Universal A/C Dye (LF1000‑series) mixes safely with any automotive refrigerant—R‑134a, the newer low‑GWP R‑1234yf, and even hybrid/EV electric‑compressor systems. The fluid fluoresces a bright green under any UV, blue, or violet flashlight, making even pin‑hole leaks at crimps or O‑rings glow like neon. Crucially, the dye is co‑solvent‑free, so it will not thin oil, swell seals, or change system pressures.
- Single‑use syringe (LF101CS): 0.3 oz treats one vehicle—ideal for DIYers.
- 1 oz bottle (LF1001): services up to 24 vehicles; perfect for small shops.
- 8 oz twin‑neck (LF1008) or BigEZ™ cartridge (LF1800): bulk economics for fleets—up to 64 vehicles per container.
Five‑Step “Add‑Run‑Scan” Routine
- Inject the dye through the low‑side service port with the engine running and A/C on Max Cool.
- Let it circulate 10–15 minutes (or a quick errand run) so dye coats every seal.
- Dim the lights or work in shade, then sweep the system with a UV flashlight—look for that unmistakable yellow‑green trace.
- Repair the leak, wipe the area, and re‑scan to confirm the glow is gone.
- Leave the dye in place; it keeps guarding the system for future check‑ups.
DIY Driveway Tips for Memorial‑Day Prep
- Work in late afternoon: lower sun angle boosts fluorescence.
- Wear UV‑blocking glasses: they sharpen contrast and protect your eyes.
- Don’t overdose: follow the 0.3 oz (single‑vehicle) or 1 oz (multi‑vehicle) guidelines—extra dye can actually mute the glow.
Pro‑Shop Advantages in Peak Season
With bays packed before vacation season, shops that stock LeakFinder can cut diagnostic time from an hour‑long vacuum and recharge to a five‑minute dye injection and scan, freeing lifts for revenue repairs.
Check out our LeakFinder A/C Sealant!