Short answer
Work out consumption from engine hours, oil capacities, and change intervals, then add the resupply lead time and a safety margin. Store lubricants sealed, dry, and indoors, rotate stock first in, first out, and use oil analysis to avoid unnecessary changes.
Calculate annual consumption
For each engine, multiply oil capacity by the expected number of changes per year, then add top-off oil. Do the same for filters, coolant, and fuel treatment.
Add lead time and margin
Island and remote resupply can take weeks or months and may be seasonal. Hold enough stock to cover the longest realistic gap plus a margin for an unexpected failure.
Store lubricants properly
Keep containers sealed, upright or on their sides as labeled, indoors, and out of temperature extremes. Water and dust contamination usually start in storage. Rotate stock first in, first out.
Use oil analysis to stretch supply safely
Oil analysis can confirm whether oil is still in good condition at a scheduled change, within the engine maker’s limits. Ship samples on a schedule that fits your mail or courier service.
International orders
Storefront links on this site serve the United States and Canada. For other countries, email Jeff with your location and quantities to check AMSOIL’s current international ordering options, then factor in freight, duties, and customs time.
Frequently asked questions
How much generator oil should a remote site keep on hand?
Enough for the changes and top-offs expected before the next reliable resupply, plus a safety margin.
How long can unopened motor oil be stored?
Keep it sealed, dry, and away from temperature extremes, and rotate stock. Check the product’s current storage guidance.
Can AMSOIL ship internationally?
Contact Jeff with your country. Options, shipping, duties, and terms vary by destination.
General maintenance information. Always follow your vehicle or equipment manufacturer’s requirements and the current product data. Questions? Email [email protected].
