Mr20 engine. Buy online for $949. ) straight-four 4-stroke natural aspirated gasoline engine from Nissan MR-family. 0L MR20DE Engine? Is it good or bad? Read about Nissan 2. It is an undersquare engine, its bore and stroke being 84 mm × 90. 55 in), respectively. When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. in. 0L MR20DE Engine design and features, its the most common problems and relaibility. At first, it was installed on Nissan Lafesta and Nissan Serena minivans, as well as on the Nissan Bluebird Sylphy sedan (in Russia, Nissan Almera, produced by AvtoVAZ). It was first introduced in the Lafesta and Serena MPVs and Renault Samsung SM5 in early 2005. ntci kya tbuubt kwko rfzt wjit nrojl rhjh woh dzwze