03/04/2026
Harga Diesel nak.. siapa nak apply subsidi BudiMadaniMinyakMasak⊠it can come from yesterdayâs ayam goreng? đ
Diesel naik lagi.. so letâs talk about options..
There was a time when fuel was just something we filled and forgot.. today, every litre makes you think twice.. especially for those of us running older diesels like the Defender 300Tdi.. What many may not realise is that engines like the Land Rover Defender 300Tdi were built in a very different era of engineering.. an era where diesel engines were mechanical, forgiving, and remarkably adaptable..
This is where things get interesting.. There has been long-standing discussion, experiments, and even field use cases showing that older indirect injection diesel engines like the 300Tdi can run on alternative fuels.. including used cooking oil.. Not fresh minyak masak from the bottle.. but used cooking oil.. filtered, settled, and sometimes pre-heated..
Diesel engines operate on compression ignition.. meaning they donât rely on spark plugs, but on heat generated from compressing air.. Now hereâs the key.. diesel fuel is essentially a hydrocarbon oil.. cooking oil is also a form of oil.. The main difference is viscosity.. thickness.. and combustion characteristics.. Used cooking oil is thicker.. which means it doesnât atomise as finely as diesel.. it may need heating or blending to flow properly.. and poor handling can lead to injector coking or deposits.. But in older engines like the 300Tdi.. no high-pressure common rail.. no sensitive electronics.. no ultra-fine injectors.. which makes it more tolerant compared to modern diesels..
From whatâs been shared globally, users typically filter used oil thoroughly to remove food particles.. let it settle to remove water.. and blend with diesel maybe 20 percent to 50 percent.. or install dual tank systems and fuel heaters.. Some even run near 100 percent UCO once properly set up..
There have been claims, though not always formally documented, that military diesel platforms, including older British units, have experimented with alternative fuels in field conditions.. the logic is simple.. in remote environments.. fuel flexibility equals survival..
Before everyone rushes to the nearest mamak to collect minyak lebihan đ letâs be clear.. this is not plug and play.. long-term use without proper setup can damage injectors.. cause carbon build up.. and affect engine lifespan.. and in Malaysia, there may also be regulatory considerations and fuel standards compliance issues..
With rising global diesel prices.. and increasing focus on sustainability.. maybe the question is not whether this is perfect.. but whether this is a glimpse into fuel resilience.. A 30 year old Defender.. running on what others throw away.. thatâs not just engineering.. thatâs philosophy..
I came across a real-world experiment.. check this video out: https://youtu.be/3n1S4E09udY?si=O9NbhcVGtol4W0eI
Who wants to try?