nobleswood Posted June 8, 2013 Share Posted June 8, 2013 What's the opinions about using synthetic oils? Link to comment Share on other sites More sharing options...
docc Posted June 8, 2013 Share Posted June 8, 2013 Yes. There are many good ones. "V-twin" oils are usually SG (high zinc and phosphorus); avoid "energy conserving" oils. Link to comment Share on other sites More sharing options...
antonio carroccio Posted June 8, 2013 Share Posted June 8, 2013 Mobil 1 5W-50 peak life the best Link to comment Share on other sites More sharing options...
gstallons Posted June 8, 2013 Share Posted June 8, 2013 After about an hour long conversation with a lubricant specialist yesterday morning , he said to use a manufacturer recommended lubricant that meets THEIR specifications. Also he stated that synthetic oils for air cooled engines are the ONLY way to go. Use the viscosity that is recommended. Mobil , Castrol , or any big name lubricant is good. Link to comment Share on other sites More sharing options...
GuzziMoto Posted June 8, 2013 Share Posted June 8, 2013 What docc said. Use the weight required for your temps and I also prefer an SG rated oil. Newer grades like SL and SM have less zinc and phosphorus and do not seem to work as well for flat tappet motors. I would personally not use a non-synthetic oil, and I am not scared of "energy conserving"oils for a Guzzi as the motor oil is not shared with the trans and clutch (no oil in the clutch) but the oils I use are not energy conserving oils. Link to comment Share on other sites More sharing options...
docc Posted June 9, 2013 Share Posted June 9, 2013 I only mentioned the "energy conserving oils" after paying heed to Pete Roper's comments about those effects on the cylinder surface. (Sorry about paraphrasing my impression here). As I recall, oils in viscosity at or over 15w-40 will not be "energy conserving." Certainly not the 20w-50 stuff. Oil IS important - especially keeping it changed and keeping it topped up. Don't let your oil level get low! Link to comment Share on other sites More sharing options...
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