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Lazarus · 11-25-2007, 03:56 PM

For engine longevity I would go with the 30W but that just me. You don't drive enough to worry about wearing out the engine. With the block heater I don't thing you would see much difference in FE between the 2 because you would be skipping most of the warmup stage where the real FE benefits of the thiner oils come in. Here's a site for oil requirements. Just curious what does the manufacture recommend?

11-25-2007, 03:56 PM	#2 (permalink)
Lazarus ECO-Evolution Join Date: Nov 2007 Location: Central Texas Posts: 1,476 Iron Horse - '97 Intrepid C-3 - '08 XF50X 90 day: 135.32 mpg (US) Thanks: 17 Thanked 29 Times in 25 Posts	For engine longevity I would go with the 30W but that just me. You don't drive enough to worry about wearing out the engine. With the block heater I don't thing you would see much difference in FE between the 2 because you would be skipping most of the warmup stage where the real FE benefits of the thiner oils come in. Here's a site for oil requirements. Just curious what does the manufacture recommend? __________________ "Judge a person by their questions rather than their answers."