Re: Synthetic oil for 4-strokes?
YOU'RE RIGHT ON THE MONEY J.B.! FINALLY SOMEBODY UNDERSTANDS. SURE, MOST ANY OIL FOR SALE TODAY MEETS ONE STANDARD OR ANOTHER. BUT FOR A FEW BUCKS MORE THE EXTRA PROTECTION IS WORTH IT BUYING THE SYNTHETIC IN MY OPINION. I USED TO USE TWO-STROKE SYNTHETIC IN MY OLD BOAT! I'M AN ENGINEER AND WORK WITH OTHER ENGINEERS, ONE WHO BUILDS AND RACES CARS. HE HAS LOST COOLANT DURING A RACE AND THOUGHT HE FRIED A VERY EXPENSIVE MOTOR, BUT WAS AMAZED AT THE FACT THAT THE OIL PROTECTED IT! WHEN HE TORE IT DOWN, THE PARTS LOOKED NEW, NO VARNISH, CARBON OR SOOT ANYWHERE. ALSO, MOST HIGH END CARS NOW USE SYNTHETICS AS THE BASE OIL. JAGUAR, PORSCHE, AND BMW TO NAME A FEW. MILITARY VEHICLES, AIRCRAFT AND TANKS HAVE ALSO BEEN USING THEM FOR YEARS. WHY?<br /><br />SYNTHETICS ALSO HAVE A MUCH BROADER VISCOSITY RANGE. THEYRE RATED LIKE CONVENTIONAL OILS, (I.E. 5W-50) BUT ONLY BECAUSE THE STANDARD REQUIRES A MEASUREMENT AT TWO DIFFERENT TEMPERATURES. KEEPING IT SIMPLE, THIS MEANS A 5W-50 OIL HAS A VISCOSITY LIKE A STANDARD 5W OIL WHEN IT'S "COLD" AND A VISCOSITY LIKE A 50W WHEN ITS HOT. SINGLE VISCOSITY OILS ARE HEAVY AND THICK COLD, BUT THIN OUT CONSIDERABLY HOT. A SYNTHETIC OIL EVEN GOES FAR BEYOND CONVENTIONAL MULTI-VISCOSITY OILS, THEY POUR AT FORTY BELOW, AND DON'T TURN TO GEL AND CARBONIZE AT HIGH TEMPERATURES. <br /><br />CHEAP INSURANCE FOR ME! LIKE YOU SAID J.B., IT'S BETTER THAN BEING CHEAP WHEN BUYING OIL THAT YOU'RE ONLY GOING TO CHANGE TWO OR THREE TIMES A YEAR!<br /><br />HAPPY BOATING!