AnonymousA., HI (2021 Mazda CX-5 Signature 2.5-L 4 Cyl turbo) "Low oil light came on. Oil level 1 quart low. A small amount of the engine oil may be leaking into the combustion chamber, causing Mazdadiesel engines are dogs just waiting to bite huge chunks out of your wallet, major design issues really, and mazda dont want to know when it all goes bang!! I have a Mazda 2.2 six with a 160 k engine still purring along at 52 to the gallon and ultra reliable with reasonable care being shown. Reply. Marlon King Posted on10:32 pm - 19 Iwas a mazda tech and can honestly say I wouldn't buy a mazda diesel. They are constantly coming out with recalls on the diesels to try and fix problems with the engines getting blocked up with carbon because of how much they have to limit whats coming out the exhaust for euro emissions standards, it was a daily occurrence to have a newish Mazdauses the same 2.5L naturally aspirated in almost all their vehicles for years; CX-3, CX-5, CX-8, CX-9, CX-30, the upcoming CX-50, Mazda 3, and Mazda 6, so it's 1 engine in all these vehicles. The turbo trim simply adds Turbo to the same capable engine so it's a tried and true engine, and transmission. (fyi, large 7-seater CX-9 comes only Mazda3 2010-2013; BMW 3-series 2006-2011; Toyota Camry 2012-2017; Mazda 6 2014-2019; In general, turbo engines tend to have more problems in many cars, although there are turbocharged engines that are reliable. Turbocharged engines have more components than naturally-aspirated (non-turbo) motors. These include an exhaust Mazda3 skyactiv 2.2 Diesel - What are they like ? If you absolutely must have a diesel despite all of the recent DPF related reliability woes then go for a Honda Civic 1.6 DTEC instead. if not looked after correctly, they get to dirty, but, if premium diesel is used with engine oil and filter changes at half the recommended intervals TheMazda 1.5 SkyActiv-D is a diesel engine that has been produced by Mazda since 2015. This engine, even though small, has proven quite a lot through the long years of use. Yes, the engine is pretty reliable if you maintain it well. If not maintained well, it will be a big headache to replace some of the components that can fail like the Mazdahas used a variety of Ford engines over the years, including the 1.3-liter, 1.6-liter, and 2.0- liter engines. Today, Mazda still uses Ford engines in some of its models, including the Mazda3 and Mazda6. However, Mazda has also developed its own line of engines, called Skyactiv, which are used in its newer models. bOVmTZ.