Kalau oli lebih mudah teroksidasi, maka rekomendasi pabrikan kendaraan itu adalah ganti oli lebih sering.
Misalnya efek dari pakai bahan bakar dengan campuran FAME salah satunya adalah oksidasi:
Examples of damage that can be caused by the use of biodiesel fuel include the following:
• Clogging of fuel filter caused by soaps, which may be formed by biodiesel components such as products of aging or products due to production shortcomings, which may contaminate biodiesel blends.
• Clogging of fuel filter due to the growth of microbes in free water containing biodiesel blends.
• Fuel gelling under cold climate conditions, because biodiesel may have poor cold flow properties depending from the feedstock and because additives in biodiesel and conventional diesel are sometimes incompatible.
• Corrosion and sticking of low-and-high pressure fuel system components such as pumps and injectors, especially after a long storage period of the vehicle, due to the formation of sticky polymers and acids during biodiesel aging/oxidation.
• Sludge formation in engine oil due to the formation of biodiesel aging products.
• Deposit formation on piston rings, oxygen sensors and exhaust gas recirculation (EGR) system parts.
• Nozzle coking and injector deposits accelerated through metallic by-products of biodiesel. • Engine oil dilution, especially when driving under low load and engine temperature conditions, because biodiesel is not evaporating from engine oil. Fuel enters the engine oil during particulate trap regeneration.
Solusi mereka:
Jadi kalau olinya mudah teroksidasi ya cara gampang ganti oli lebih sering.Fuel dilution / crankcase oil dilution
• Blends of B20 and higher can cause a larger amount of unburned fuel to make its way past the piston rings and into the oil pan. This is due to the slightly higher viscosity and density of biodiesel vs. petrodiesel.
• High levels of biodiesel present in the engine oil may polymerize over time and cause serious engine oil sludge problems. Engine oil change intervals may need to be halved if using high blends of biodiesel. The viscosity and density of B20 and lower blends are very similar to that of the pure petrodiesel, and this phenomenon has not been problematic with blends of B20 or lower, so no changes in engine oil intervals are anticipated with B20 or lower blends.