00 2.0 synthetic oil for diesel engine? - jazzyman
Just purchased a 5W/30 Fully synthetic oil for my 2000 Mazda 323 Diesel Turbo. The recommended oil according to the handbook is 10W/30 (I guess that is a Mineral oil). There was no lubrication guide at the store so I am now wondering if I have picked up the right oil?

Edited by Dynamic Dave on 09/04/2009 at 19:56

00 2.0 synthetic oil for Mazda 323 diesel? - Woodspeed
You can use it with no problems. the W in 5W/30 indicates winter. At cold start it is thinner than 10 (more useful). You can also get a 0/30 which is even thinner (useful if you live in Scandinavia).