What does the air filter in diesel engines do?
Diesel engines are a bit different than gas engines, and so are their air filters. Diesel engines need a lot more air to run than gas engines, so their filters are usually bigger and beefier to handle the extra flow.
How to tell if the air filter is faulty.
Just like with a gas engine, a clogged diesel air filter can cause poor fuel economy and reduced engine power. You might also notice some black smoke from the exhaust. If your diesel feels like it’s lost some pep, check that air filter.
How much does it cost to repair an air filter for diesel engines in New Zealand?
Diesel air filters can be a bit pricier than their gas counterparts due to their larger size. Expect to pay somewhere in the $100–200+ range for a replacement.
The bottom line on diesel air filters – they’re a critical part of keeping your diesel running strong. Don’t skimp on quality or put off replacement too long, as a restricted filter can really put a damper on your engine’s performance. Keep that filter fresh and let your diesel breathe deeply.