I searched before asking and found 500 posts containing 0W20 and 0W30. Forgive me for not wading through them all!
Both my vehicles (2003 Toyota Matrix 1.8l 2ZZ 58K and 2004 Toyota Tacoma 2.4L 38K) call for 5W30. I run a mix of GC Green and Gold in both of them now. For say, fuel mileage and "power" increase, can I safely run 0W-20 in these vehicles? I know both are still under power train warranty but I would like to keep the ideas outside the warranty "restrictions". Is a syn 0W-20 not "as good" or better than dino 5W-30? With GC becoming more and more rare (I'll be checking my local stores today), PP is looking better and better cost wise. And yes, I'm the guy who said he would never use PP.
The articles posted in another thread got me thinking about all of this. The information made sense. From what I have seen here, the 0W-20 has a lower cSt at 40c than a 5W-30 (for better start-up flow) but a lower cSt at 100C for a lower viscosity at operating temps (roughly 8.8 vs 10 to 12). Would the 1.2 cSt make that much of a difference? I mean the cSt varies that much among "grades". I do 5k OCI's on both vehicles. The Matrix is running an SR with a K&N cone filter and the Tacoma is a stock paper filter. Both currently use OEM oil filters (this will change when I deplete my stock). I doubt that info matters but it saves questions. The Matrix is my wife's daily driver and our family trip car. It usually sees around 100 miles a week. I don't "abuse" it when I drive it, but I do drive spirited when I have my hands on it. This car redlines at 8200 rpm and will see the limiter on occasion. The vehicle is equipped with the VVTi-L which alters the cam lobes above 6000 rpm for "lift" and better power. The engine uses oil pressure to activate the cam shift. The Tacoma is my daily driver which sees a mix of highway/city and 200+ miles a week.
Thanks in advance for the opinions.
Both my vehicles (2003 Toyota Matrix 1.8l 2ZZ 58K and 2004 Toyota Tacoma 2.4L 38K) call for 5W30. I run a mix of GC Green and Gold in both of them now. For say, fuel mileage and "power" increase, can I safely run 0W-20 in these vehicles? I know both are still under power train warranty but I would like to keep the ideas outside the warranty "restrictions". Is a syn 0W-20 not "as good" or better than dino 5W-30? With GC becoming more and more rare (I'll be checking my local stores today), PP is looking better and better cost wise. And yes, I'm the guy who said he would never use PP.
The articles posted in another thread got me thinking about all of this. The information made sense. From what I have seen here, the 0W-20 has a lower cSt at 40c than a 5W-30 (for better start-up flow) but a lower cSt at 100C for a lower viscosity at operating temps (roughly 8.8 vs 10 to 12). Would the 1.2 cSt make that much of a difference? I mean the cSt varies that much among "grades". I do 5k OCI's on both vehicles. The Matrix is running an SR with a K&N cone filter and the Tacoma is a stock paper filter. Both currently use OEM oil filters (this will change when I deplete my stock). I doubt that info matters but it saves questions. The Matrix is my wife's daily driver and our family trip car. It usually sees around 100 miles a week. I don't "abuse" it when I drive it, but I do drive spirited when I have my hands on it. This car redlines at 8200 rpm and will see the limiter on occasion. The vehicle is equipped with the VVTi-L which alters the cam lobes above 6000 rpm for "lift" and better power. The engine uses oil pressure to activate the cam shift. The Tacoma is my daily driver which sees a mix of highway/city and 200+ miles a week.
Thanks in advance for the opinions.
