Can I run a 2004 TDI on Veggie Oil? I'm having a running debate about this. Thanks in advance. David
- posted
17 years ago
Can I run a 2004 TDI on Veggie Oil? I'm having a running debate about this. Thanks in advance. David
"Non-turbo TDI"? Huh?
-- Mike Smith
TDI TurboDieselInjection
I was under the impression that the 04 uses a different injection system that makes it even a less likely candidate than the 2003 and earlier. Payback is pretty poor and some report goofed up injector pumps that are pretty costly. Debate might be more rabid at
Actually, TDI = Turbo Direct Injection - the fuel is injected directly into the cylinders instead of into the intake manifold.
True. The "T" still stands for "turbo".
-- Mike Smith
In some other markets, VW sells or sold non-turbo direct injection diesels. They were called SDI instead of TDI (S of suction instead of T for turbo).
ALL Diesels, turbo or naturally-aspirated, inject the fuel directly into the combustion chamber. That's how their ignition is timed. No Diesel injects into the intake manifold. VW might call it TDI because of the direct injection, but that's not because it's special or unique to VW engines.
Early VW 1.6 and 1.6 diesels do not inject directly into the combustion chamber. Instead, the fuel is injected into a pre-combustion chamber where combustion starts. The burning gasses then spread into the combustion chamber. These engines are referred to as IDI for indirectly injected. Non-turbo directly injected engines are referred to as DI and turbo directly injected engines are referred to as TDI. Search IDI and VW and you can learn about them.
The "Direct Injection" refers to the fuel being injected directly into the combustion chamber instead of a *prechamber* not the intake manifold. Most Diesels up until recently injected the fuel into a prechamber.
That explains the TDI nomenclature -- but no Diesel injects into the intake manifold. A pre-combustion chamber is part of the combustion chamber.
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