Hi - trying to get one last oil change in before parking the van for the winter. 2.1 litre engine rebuilt about 30k km ago. Normally I use 20W/50 in the summer and I “believe” my mechanic has been using 15W/40 synthetic. I can only find diesel 15W/40 synthetic at my FLAPS. This is not the same, is it? Is this the right weight of oil for me?

Thanks 
Jeff in Winnipeg

Sent from my iPhone