For Nova Scotia winters and summers you'll want a diesel-rated (CJ-4 or better) synthetic 5W40.Shell Rotella T 5W40 full synthetic in the big blue jug is perfect... often found at Canadian Tire on sale.
Quote from: Vincent Waldon on September 20, 2009, 12:59:41 amFor Nova Scotia winters and summers you'll want a diesel-rated (CJ-4 or better) synthetic 5W40.Shell Rotella T 5W40 full synthetic in the big blue jug is perfect... often found at Canadian Tire on sale. Synthetic really make a huge difference in the cold. The engine will crank much faster. It protects better too. I like Mobil Delvac-1 full synthetic - it has the CD-4 rating and can be used with indefinite oil change interval with proper filter changes and oil analysis. I went 100,000 miles a change on a couple of power strokes. The lab always showed my oil within spec. The filter was deep with 2 quarts each change, so the 16 total quarts got 1/8 changes every 7,000 miles.