[QUOTE=tdw6974;303571]Bruce, Truck Gets Rotella (no question on that) so looking for the Mazda Racer Internal Inspection revealed we might need a 5 or 10 weight to get to flow quicker to bearings then 40 or 50 on upper end. Used the Kendall GT for many years when they were Major Sponsor at Watkins Glen. working tech we had inside with the dealer and we got the GT-1 for nearly free! Because of the temps run by the Rotary use the Syntheic . T[/QUOTE

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Tom...perhaps try the Brad Penn since it's like the Kendall.