Empowering Car Owners 10W30 vs 10W40 - A Comprehensive Guide

The difference between 10W30 vs 10W40 viscosities is the thickness at hot temperatures. During the cold temperature, they flow at the same rate. The bike revs much quicker, does much better at sustaining higher rpm revs and feels smoother at higher rpms. So overall a surprising change in performance. Quality engine oil formulated for your vehicle at Repco. Your local Repco stocks a 5w30 or any other grade of engine oil from Castrol, Penrite, ... 10w-30 or 10w-40???? ... was wondering which oil to use for 4th gen 1996 vtec model. friend got cases of red line and i have to know which ones to ... This video offers an in-depth comparison between 10W-30 and 5W-40 engine oils, analyzing their viscosity ratings, characteristics, ... First off lets look at what 10W30 & 10W40 means. The first number, they are both 10 weight oils, no difference when cold. The second number, 30 ... In the 10W-40 engine oil, the 10W (W = winter) simply mean the oil must have certain viscosity or "thickness" flowing at low temperature. The lower the "W" ... The high detergent in Diesel oils like 15/40 had a counter-effect on the zddp additive. Essentially a higher level of zzdp was required in those oils. 10w-30 vs. 10w-40 in 8.1L ; 10w-30 vs. 10w-40 in 8.1L. K · K · Wed, Sep 29, 2004 12:18 AM ; D · "Doc" · Wed, Sep 29, 2004 2: ; Z · zonie · Wed, Sep 29, 2004 ... Definitely 10w30. As long as you are not enduro racing in the heat of the summer, 30 weight is fine. Whereas thick oil when cold provides less ...