Phased
28-10-2009, 06:24 PM
Hey All,
After using Motul/Royal Purple in my previous cars. I did some research and was talking to an engineer as well as a friend that works for Mobil. My research showed me that by independant tests showed that AMSOIL Synthetic oil is the best overall ( in terms of Wear Protection, Pour Point, Flash Point etc) consumer available oil. I asked my friend that works for mobil and he said he had known about it for while and his own and collegues opinions were it was a superior oil.
I Purchased 5 Litres of AMSOIL 10w30 and an AMSOIL Absolute Efficiency (98.7%) Oil Filter... Much to my surprise it was cheaper than Royal Purple Oil (at $99.99 for 5L's RP is VERY overpriced) and only slightly more expensive for the oil filter... which is good considering the AMSOIL filter uses fully synthetic media and the K&N filters are only Semi-Synthetic.
After the change I noticed a few things... Many of which could be a psychological difference. Better low end response (although I don't really feel a difference in power). Engine's quieter (but it's hard to be sure due to the HORRIBLE K Series Injectors)... Usual so called benefits of running synthetic oils.
One thing that I noticed that can't be psychological... The engine temperature (at Operating Temp.) after the oil change runs about 1 - 1 1/2 needle widths cooler. Especially when considering the RP was in the engine when ambient temps were 10 degrees cooler than what they are now.
I suppose the theory behind it is that Oil not only lubricates but acts as a heat exchange liquid and also the better the oil the less friction... (both Surface/metal friction and internal oil/liquid friction). Thus the car runs cooler. I thought that the temperature sensor would change the behavior of the thermostat to compensate...
Anyone else experienced anything similar?
After using Motul/Royal Purple in my previous cars. I did some research and was talking to an engineer as well as a friend that works for Mobil. My research showed me that by independant tests showed that AMSOIL Synthetic oil is the best overall ( in terms of Wear Protection, Pour Point, Flash Point etc) consumer available oil. I asked my friend that works for mobil and he said he had known about it for while and his own and collegues opinions were it was a superior oil.
I Purchased 5 Litres of AMSOIL 10w30 and an AMSOIL Absolute Efficiency (98.7%) Oil Filter... Much to my surprise it was cheaper than Royal Purple Oil (at $99.99 for 5L's RP is VERY overpriced) and only slightly more expensive for the oil filter... which is good considering the AMSOIL filter uses fully synthetic media and the K&N filters are only Semi-Synthetic.
After the change I noticed a few things... Many of which could be a psychological difference. Better low end response (although I don't really feel a difference in power). Engine's quieter (but it's hard to be sure due to the HORRIBLE K Series Injectors)... Usual so called benefits of running synthetic oils.
One thing that I noticed that can't be psychological... The engine temperature (at Operating Temp.) after the oil change runs about 1 - 1 1/2 needle widths cooler. Especially when considering the RP was in the engine when ambient temps were 10 degrees cooler than what they are now.
I suppose the theory behind it is that Oil not only lubricates but acts as a heat exchange liquid and also the better the oil the less friction... (both Surface/metal friction and internal oil/liquid friction). Thus the car runs cooler. I thought that the temperature sensor would change the behavior of the thermostat to compensate...
Anyone else experienced anything similar?