CAMARO6 - View Single Post - 0w-40 oil for V6 LGX

Elite Engineering · 07-01-2021, 02:29 PM

To add to this, as with ALL GDI engines, the high amounts of raw fuel pushed past the piston rings washes oil from the cylinder wall as well as dilutes the already far too thin of oil specified for street use causes a high number of failures on these high revving DOHC engines. So this is critical for long term protection. We recommend 5w50 full synthetic just from the research done on these and other GDI engines.

The confusion seems to be blindly trusting a owners manual or manufacturer than today must balance the CAFE fuel economy standards they must meet with engine longevity and protection. And the only reason they specify the thin oils is just to meet these rules. It has nothing to do with what's best for the engine.

From timing chain tensioners and chain wear to oil consumption issues and rod bearing failures, the far too thin of oils with these engines can be directly attributed to oil issues.

Then we have to examine the LGX engines PCV system. In order to slow the rate and severity of the intake valve coking issues all GDI engines experience as well, GM deleted the "positive" function of the PCV system so only passive venting takes place and no real evacuation, so much of the constantly entering damage and wear causing substances the are contained in the blow-by are left IN the crankcase to mix with the oil and accelerate wear and damage over time, the engine oil has to work extra hard to protect even for daily driving much less track abuse.

I bring attention back to us covering all of this when the Gen6 V8's and V6's were just released for 2016 and we warned of this and of course got flak as "The Engineers at GM surely know more about this" and of course we all saw the rate of engine failures running the thin oils during track events. Rod bearing failures being the most common. And of course GM then released the supplements on using a 0w50-5w50, but of course they cannot specify this for street use as that would disqualify their CAFE certs, so they only specify for track use even though your engine will last longer.

Hope that helps, and remember, our Patented E2-X system design addresses all of this as well on the LGX by adding IM vacuum back in for proper removal of these substances before they can settle and mix.

07-01-2021, 02:29 PM	#4
Elite Engineering Drives: 2010 Camaro Join Date: Nov 2009 Location: Denver Posts: 1,381	To add to this, as with ALL GDI engines, the high amounts of raw fuel pushed past the piston rings washes oil from the cylinder wall as well as dilutes the already far too thin of oil specified for street use causes a high number of failures on these high revving DOHC engines. So this is critical for long term protection. We recommend 5w50 full synthetic just from the research done on these and other GDI engines. The confusion seems to be blindly trusting a owners manual or manufacturer than today must balance the CAFE fuel economy standards they must meet with engine longevity and protection. And the only reason they specify the thin oils is just to meet these rules. It has nothing to do with what's best for the engine. From timing chain tensioners and chain wear to oil consumption issues and rod bearing failures, the far too thin of oils with these engines can be directly attributed to oil issues. Then we have to examine the LGX engines PCV system. In order to slow the rate and severity of the intake valve coking issues all GDI engines experience as well, GM deleted the "positive" function of the PCV system so only passive venting takes place and no real evacuation, so much of the constantly entering damage and wear causing substances the are contained in the blow-by are left IN the crankcase to mix with the oil and accelerate wear and damage over time, the engine oil has to work extra hard to protect even for daily driving much less track abuse. I bring attention back to us covering all of this when the Gen6 V8's and V6's were just released for 2016 and we warned of this and of course got flak as "The Engineers at GM surely know more about this" and of course we all saw the rate of engine failures running the thin oils during track events. Rod bearing failures being the most common. And of course GM then released the supplements on using a 0w50-5w50, but of course they cannot specify this for street use as that would disqualify their CAFE certs, so they only specify for track use even though your engine will last longer. Hope that helps, and remember, our Patented E2-X system design addresses all of this as well on the LGX by adding IM vacuum back in for proper removal of these substances before they can settle and mix.