Porsche CEO Oliver Blume said, "Porsche is not demonising diesel".
Another reason for the no-diesel vow, he said, is that the company wants to return to its sporty roots.
Instead, the automaker will focus on the areas of hybrid technology and electromobility - by 2022, it would have invested more than six billion euros (RM29 billion) in e-mobility.
With regulators now tightening emissions standards and placing extra scrutiny on diesel emissions in particular, Porsche has decided that it will no longer offer the engines.
Three years ago, Porsche's parent company Volkswagen became embroiled in a diesel emission fixing scandal. Of course, diesel isn't a popular choice for Porsche customers, accounting for only 15 percent of the automaker's sales.
The move by the German auto maker, which offered diesel options only in its family-focused Cayenne, Panamera and Macan models, follows a collapse in demand since 2015 when parent company Volkswagen was caught installing so-called "defeat devices" to dupe emissions tests. "The diesel crisis caused us a lot of trouble", said Blume. Nevertheless, Porsche's image has suffered.
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"I think modern diesel engines are highly attractive and environmentally friendly", he said.
The company's first diesel vehicle was sold just 10 years ago. It has not had a diesel in its line up since February.
Porsche is planning to invest six billion euros in electrified vehicle technology by 2022.
The withdrawal from diesel is not likely to hurt Porsche's business much, considering only 14 percent its cars run on the fuel worldwide.
"We have never developed and produced diesel engines ourselves", Blume told the paper.
Courts are increasingly pressuring German cities to clean up their air, with a diesel ban on two major roads in Hamburg and city-wide exclusion zones for older vehicles coming into Stuttgart and Frankfurt to reduce harmful nitrogen oxides (NOx) emissions.