Oil – Universal Tractor Oil 10W/30, 20 Litres. Universal oil, 20l, semi-synthetic, SAE 10W-30 STOU/SUTO by Kramp. KRAMP MULTI OIL 10W-30 STOU is a multi-functional semi-synthetic oil for lubricating all mechanical components in tractors, agricultural machinery, public transport vehicles and related equipment in all seasons. It is suitable for the following applications. Mechanical transmissions equipped …