10W30 vs 10W40 A Comprehensive Guide to Engine Oil Selection - Don't Miss This!

10W30 and 10W40 are made from the same base (assuming we are comparing oils from one manufacturer) with different amounts or types of polymers ( ... Oil 10W30 Vs 10W40 Texas Impreza Club Forum -- TXIC. I run 10w30 VR1 in my 200, it sits at 25+ psi at a hot idle in 90-degree Tennessee heat. If your crank bearings are in spec, 10w30 is perfectly fine. This video offers an in-depth comparison between 10W-30 and 5W-40 engine oils, analyzing their viscosity ratings, characteristics, ... The difference between 10W-30 and a 10W-40 is the high temperature viscosity. Obviously, a 10W-40 is thicker than a 10W-30 at high temperature. Armed with ... The only time you have to even consider going to thinner oil when it gets cold is if the starter can't turn over the motor fast enough to start the motor. Magandang tugon. Ang tanging idadagdag ko lang ay ang bawat timbang ng langis ay may saklaw ng lagkit na maaaring maging grado. Ibig sabihin, ... Difference between 10W40 and 10W30!! HUGE ... 10W30 vs. 10W40 Oil | What's the Difference Between 10W30 and 10W40 Oil | Partzilla.com. While the viscosity of a heavy duty engine oil accounts for its contribution to fuel economy, it is the composition of the base oil and additives that protect ... Motor oil grades like 10W-30 and 10W-40 refer to the oil's viscosity, or how easily it flows, at different temperatures.