5w-20

mfisher12 · 10-28-2008, 09:33 PM

I would have to say that 5w20 on the 8's is my choice, esspecially on the 09 modles, the OMP and filter system is completely redisigned to reduce carbon build up and prevent flooding issues. the omp on the 09s continue pumping as long as the engine is still turning key off engine off. they have also included 2 additional oil injestors, all in jectors are PCM controlled with 2 OMPs.not saying 5w20 is the only or best choice, but typically the engines i see with lower than normal compression have been flooded and incorrectly or harshly deflooded or never were allowed sufficient warm up time before ragging the hell out of it....the bearings in the pictures before deffinatley looked like corrosion or starvation...maybe the changed it every 3k but only after a year went by

MAZMART · 11-01-2008, 06:08 PM

The purpose for 5W20 being specified (In the US) is for CAFE standards. It's all about improving fuel economy to avoid fines. The effect on each car type is minimal but it adds up and every .1 mile per gallon is helpful.

Red Line 5W30 would be one of my recommendations for the street used vehicles even if they're driven hard and tracked occasionally. It's viscosity after a short period is far superior to any non synthetic 10W40 AND EVEN MOST 20W50s. It's amazing to see what numbers become over time with a harsh environment. The fuel dilution found quite often in rotaries is another reason to consider your starting viscosity wisely.

Paul.

11-02-2008, 08:54 AM

Quote:

Originally Posted by MAZMART

The purpose for 5W20 being specified (In the US) is for CAFE standards. It's all about improving fuel economy to avoid fines. The effect on each car type is minimal but it adds up and every .1 mile per gallon is helpful.

Red Line 5W30 would be one of my recommendations for the street used vehicles even if they're driven hard and tracked occasionally. It's viscosity after a short period is far superior to any non synthetic 10W40 AND EVEN MOST 20W50s. It's amazing to see what numbers become over time with a harsh environment. The fuel dilution found quite often in rotaries is another reason to consider your starting viscosity wisely.

Paul.

EXACTLY... The 5w20 was used for emissions and fuel consumtion regulations. thus another reason for the Renises engine it was built about emissions control.

And I will stand behind Redline as an oil as well.. I dont sell the Redline Engine oil but if it is any quality as the gear/trans lube is then it HAS to be good.

10-28-2008, 09:33 PM	#1
mfisher12 Rotary Fan in Training Join Date: Oct 2008 Location: SC formally form northern VA Posts: 31 Rep Power: 0	I would have to say that 5w20 on the 8's is my choice, esspecially on the 09 modles, the OMP and filter system is completely redisigned to reduce carbon build up and prevent flooding issues. the omp on the 09s continue pumping as long as the engine is still turning key off engine off. they have also included 2 additional oil injestors, all in jectors are PCM controlled with 2 OMPs.not saying 5w20 is the only or best choice, but typically the engines i see with lower than normal compression have been flooded and incorrectly or harshly deflooded or never were allowed sufficient warm up time before ragging the hell out of it....the bearings in the pictures before deffinatley looked like corrosion or starvation...maybe the changed it every 3k but only after a year went by

11-01-2008, 06:08 PM	#2
MAZMART Rotary Fan in Training Join Date: Oct 2008 Location: Atlanta Posts: 31 Rep Power: 0	The purpose for 5W20 being specified (In the US) is for CAFE standards. It's all about improving fuel economy to avoid fines. The effect on each car type is minimal but it adds up and every .1 mile per gallon is helpful. Red Line 5W30 would be one of my recommendations for the street used vehicles even if they're driven hard and tracked occasionally. It's viscosity after a short period is far superior to any non synthetic 10W40 AND EVEN MOST 20W50s. It's amazing to see what numbers become over time with a harsh environment. The fuel dilution found quite often in rotaries is another reason to consider your starting viscosity wisely. Paul.