Privacy
Effective June 12, 2026.
What we collect
This site has no accounts and collects no personal information directly. You can read every page, use every calculator, and print every chart without telling us anything. The calculators run entirely in your browser; nothing you type into them is sent to us.
Analytics
We use Google Analytics to count page views and anonymous events such as calculator use. Google Analytics sets cookies and similar identifiers to distinguish visits; what we look at is aggregate reporting (which pages get read and which tools get used), not individual profiles. How Google handles this data is described at policies.google.com/technologies/partner-sites, and you can opt out of Google Analytics in any browser with the add-on at tools.google.com/dlpage/gaoptout.
Advertising
Google AdSense serves ads on content pages. Google and its partners may use cookies to personalize the ads you see based on your visits to this site and others. How Google uses data from sites that show its ads is described at policies.google.com/technologies/partner-sites, and you can opt out of personalized advertising at adssettings.google.com.
Hosting
Cloudflare serves this site and, like any host, sees standard request logs (IP address, requested pages, browser type) as part of delivering pages and filtering abuse.
Contact
Privacy questions: contact@oiltankcharts.com.
Changes
If this site ever adds a feature that stores user data, such as a delivery reminder account, this page will be updated before that feature launches.