Technical guides
Straight answers about oil, written by people who blend it.
How to choose a grade, what the letters on the label mean, and how long oil actually lasts in Ethiopian conditions. No sales pitch in the middle of a technical answer.
01 / Guides
Start here.
How to choose the best engine oil in Ethiopia
There is no single best engine oil — only the right grade for a given engine, worked a given way. Here is how to get to it in three steps.
Read the guideEngine oil viscosity explained: what 5W-30 and 15W-40 mean
Two numbers, one letter, and most of the confusion in the oil aisle. Here is exactly what SAE 5W-40 is telling you.
Read the guideAPI, ACEA and JASO specifications explained
The letters on an oil label are performance categories written by industry bodies. Here is who writes them and what each one guarantees.
Read the guideHow often should you change engine oil in Ethiopia?
The interval in the handbook assumes ordinary service. A great deal of Ethiopian driving is not ordinary service.
Read the guide02 / By product family
Or go straight to the range.
Still not sure which grade you need?
The grade finder narrows the range to a recommendation in two questions, and shows the reasoning so you can check it against your handbook.