Match your owner's manual spec to the coolants that list it, compare formulas side by side, and learn how to top up, flush and fix leaks. Every claim is cited to the maker's own data, from family cars to AI data-center liquid cooling.
Find my car coolantBrowse 137 coolants →The questions drivers ask most, answered with specs and safety first.
Pick the spec code from your manual and see products whose makers list it.
What Toyota, Honda, Ford, GM, VW, Tesla and others specify, with citations.
Every brand in the directory: chemistries, spec codes and products.
100+ products with sourced chemistry, spec codes and service-life claims.
Up to four products side by side, with a shareable link.
Find your spec in the manual and match the label.
When to flush, flush vs drain-and-fill, step by step.
Signs, causes, how to find it, and what affects repair cost.
Why color is not a spec, and what it usually means.
Which to buy, and how to dilute correctly.
What it means and the safe steps to take.
A neutral hub for the fluids behind AI-era direct-to-chip and immersion cooling.
Sourced list of qualified suppliers and products.
The propylene glycol fluid behind direct-to-chip loops.
How the two approaches and their fluids differ.
Compare qualifications side by side.
Fast, private, no sign-up.
EG or PG, 0–60% by volume, from published tables.
IAT, OAT, HOAT, P-HOAT, Si-OAT compatibility rules.
Qualified PG25 fluids at a glance.