TDI (Turbocharged Direct Injection) is a marketing term used by Volkswagen Group for its turbocharged diesel engines that have an intercooler in addition to the turbo compressor. … The emissions controls were suppressed otherwise, allowing the TDI engines to exceed legal limits on emissions.
In more technical terms, the TSI stands for “turbocharged stratified injection,” while TDI stands for “turbocharged direct injection. When you have a hard time remembering which one is which, think of the D in TDI meaning that it has the diesel engine.
Volkswagen 1.9L ALH TDI Diesel
While Volkswagen has produced many very good diesel engines over the years, the “ALH” engine used between 1998 and 2006 is regarded as one of the best. … These engines not only became known for their outstanding reliability, but also for the amazing fuel economy that they could achieve.
The first part of the TDI moniker is relatively straightforward – it stands for ‘Turbocharged‘, indicating that the car has a turbocharger fitted to its engine. … As turbocharging technology improved, power and torque outputs continued to rise, eventually resulting in performance diesels that could rival petrol cars.
Which is better, TSI or TDI? The TDI engine is a diesel engine that’s made by the Volkswagen Group. TDI stands for ‘Turbocharged Direct Injection. … While most modern TSI engines are capable of excellent fuel economy of 45mpg or more, they generally fall short of TDI engines, some of which manage over 65mpg.
Diesel fuel simply packs more energy in every gallon than gas fuel, which makes it more economical overall. Diesel engines are still more efficient than gas engines, but less so for those who are mostly engaged in city driving. … For most U.S. consumers, diesel fuel and gas fuel cost about the same.
TDIs Are Cheaper Than Ever
Partly due to all of the Dieselgate uncertainty and negative press, and partly due to the abundance of bought-back cars that need to find new homes, TDI models on the market right now are selling for about 30% less than they otherwise would be.
The main reason I purchased the VW Golf TDI is that with the diesel engine, life expectancy is 50-80% longer. A well-maintained diesel engine can easily go 400-500,000 miles.
We have two Jetta TDI wagons, a 2002 Mk4 ALH automatic and a 2005 Mk4 BEW manual, both with well over 200,000 miles. Our maintenance costs have averaged just over $0.10/mile (USD) over the time we’ve owned them.
Volkswagen admitted to cheating on clean air rules with software that made diesel emissions look less toxic than they actually were. The scandal triggered a crisis at Volkswagen and a crackdown on diesel engines. Cities and countries around the world have announced bans on older generations of diesel cars.
Grand Tourer Injection
Any driver taking the time to compare Volkswagen Golf models is going to run across the VW Golf GTI, so they might end up wondering, “What does GTI stand for in VW models?” That’s easy enough – GTI stands for Grand Tourer Injection.
Ironically, just as the Jetta TDI was the first diesel car to win the award, it was also the first car in which the award was rescinded. But the rest is history, as Volkswagen moved away from making diesel cars and is now making a big push toward electric vehicles.
Generally, TDI covers employees who are temporarily unable to work due to an illness or injury that is not work related. (Injuries or illnesses suffered on the job are typically covered by workers’ compensation insurance, not TDI.) TDI also covers temporary disability due to pregnancy and childbirth.
CRDI and TDI both boost the engine’s performance with minimal combustion noise. CRDI is a bit more expensive than other diesel engine technologies, but you can save a lot in the fuel costs since less fuel is wasted.
Red “I” in TDI = chip OR injectors. Red “DI” in TDI = chip AND injectors. Red “TDI” in TDI = Chip + injectors + MORE (pump, larger turbo, etc)
The VW/Audi 2.0 TDI gets mixed reviews when it comes to the reliability of the engines, mainly because of the oil pump and turbo failures. And of course the VW emissions scandal. However, overall these engines are solid and we have seen many last over 200,000 miles without any major engine damage.
turbocharged stratified injection
TSI stands for “turbocharged stratified injection” and was inspired by the Volkswagen TDI Clean Diesel and FSI direct fuel injection engines. … TSI engines combine direct injection and turbocharging to offer impressive power while still providing incredible fuel efficiency.Aug 18, 2015
Cons of diesel cars
Diesel cars tend to be more expensive to buy than similar petrol models. Diesel fuel usually costs more. Servicing can be more expensive, although you don’t need to do it as often. Diesel cars produce a lot more NO2.
“Modern diesel engines start in cold weather with very little effort.” The problem is that diesel jells at low temperatures. Below about 40°F, certain hydrocarbons in diesel turn gelatinous. … Glow plugs and other remedies, however, effectively vaporize diesel to prepare it for combustion.
Diesel engines provide owners with power, fuel-efficiency, and longevity. While these engines carry a stereotype of “heavy-duty,” diesel-powered vehicles are also suitable for commuters and everyday drivers.
Another reason diesel engines last longer than gas engines is due to the fuel that they burn. Diesel fuel is a type of distillate fuel that is essentially produced from crude oil, which gives diesel engines slower cylinder wear than gasoline engines. … Gasoline also burns much quicker than diesel fuel.
On May 19, 2017, VW received approval to repair 2012–2014 Passat TDI models. A total of 84,391 cars are included, except those with manual transmissions; CARB said VW had not shown sufficient evidence that they will be made compliant. VW is awaiting approval to resell these vehicles as used cars.
Gallery: VW Shows Why Its Diesel Engines Are Now Cleaner Than Ever. VW recently introduced the all-new EA 288 EVO diesel engine to debut their new Twin-Dosing Technology. … According to VW, the new Twin-Dosing system reduces NOx emissions by over 80 percent leading to a much cleaner engine.
On the latest generation of VW TDI diesel engines, the glow plugs remain on for up to four minutes after the engine starts to smooth the idle, and reduce noise and hydrocarbon emissions.
Even when used extensively for towing and hauling, Powerstroke, Cummins and Duramax diesel trucks typically last well beyond 100,000 miles. Because of that, it’s not uncommon to see diesel pickups with 200,000 and even 300,000 miles commanding good resale values on the used truck market.
The reasoning is TDI’s do not get warm while idleing. You can sit for a while, over 10 minues and not be at half of the operating temp. So just start it up and drive easy for a few minutes. If you just bought your TDI go read this link it is very helpful and important.
Let your engine warm up like you warm up in the morning. Let the glow plugs and intake heater do their job. … The other thing that’ll keep your engine running longer is preheated coolant. The more cold-starts your diesel is subjected to, the shorter its lifespan will be.
According to the Volkswagen site, Volkswagen recommends that you change your vehicle’s oil every 12 months or 10,000 miles, whichever comes first. That means that if you drive less than 10,000 miles per year, you can just set a recurring annual date to get your oil changed and should be good to go.
A History Of Questionable Reliability
For much of the past decade, Volkswagen has been plagued with powertrain reliability issues in the high-volume four- and five-cylinder engines that power Passat, Jettas, and other VW products, according to Consumer Reports.
Diesel will remain in service in the right applications. But it will be a much cleaner fuel being used in ways that make those trucks as efficient as possible in terms of emissions, fuel economy and freight efficiency.” Which means the diesel is not going to die – at least not in our lifetimes.
March 13, 2017—Volvo chief executive Håkan Samuelsson revealed at the Geneva Motor Show that after the year 2020, diesel engines are likely to become obsolete. … “Until 2020 diesel will continue to have a very important part to play.
Grand Touring Turbo Diesel Injection.
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