Essential, must-know insights on motor oils - everything from the basics of PAO to the origins of SAE 30 and why that number matters, the meaning behind KV40 and KV100, and the logic of 40 and 100. Plus, what paraffin really is and much more. All the fundamentals in one place. A translator from Russian to English might be needed, but luckily, that’s built into just about every browser these days