Originally Posted By: TFB1
Originally Posted By: Chris Meutsch
Originally Posted By: A_Harman
Originally Posted By: bbhero
Man, you are awesome !!
Well I have heard that the VQ35 motors are hard on oil. Have a tendency to shear oil very well. I've heard that the timing chain guides are where the weak point is in the motor. Guides break and cause all kinds of trouble. One reason I don't go way long intervals is what I've heard about these motors being hard on oil. But more importantly is the fact that 50% of my driving is stop and go, plus short trips to the numerous grocery stores nearby. Almost always manage to forget something
I think the VQ has become notorious for shearing oil because of its small sump.
Agree on this point. My MIL's VQ37 is a 5 quart sump. So is my 4-cylinder CR-V.
Prior to '03, Ford's mod motor 4.6 also have a 5qt sump... Was increased to 6 for the '03 MY...
AFAIK trucks were always at least 6 qt...
Supposedly the squeezing between chain links and gears damages the VIIs but that may well be on earlier oils... These engines can run 300K mi with relative ease, can't really be hard on oil...
Actually the 4.6/5.4 engines all had the same oil pan and they were originally called a 6 quart pan but 7 fits without crank splashing issues.
The only change was the length of the dipstick.
The oil pan never changed