cobraracer46
Banned
I would say that Red line synthetic oils are the cream of the crop.don't be a moron, german castrol is some of the best oil that you can put into your engine.
I would say that Red line synthetic oils are the cream of the crop.don't be a moron, german castrol is some of the best oil that you can put into your engine.
Cap does say 5W20 since its the one that Ford recommends for dd on avg driving on good weather (without going too hot nor cold). 5W30 is mostly for hard driving but not everyone drives hard all the time. 5W30 is not recommend on cold places though, oil is too thick to get warm fast and can/might cause a rod to spin. Again, depends a lot on weather. Here in Cali it doesnt get too hot nor cold, so there really is no reason for me to change so I only stick to 5W20. Again it depends on weather. Stick to Motorcraft or Mobile 1, highly recommend both.
I would say that Red line synthetic oils are the cream of the crop.
Car is in storage but I am almost 100% positive that the oil fill cap says 5w-20. I suppose who knows if the cap was ever replaced/switched out.
Uh, 5w-20s and 5w-30s act exactly the same in the cold weather, hence they are both given a "5" weight.
Not true...
Motorcraft Full Synthetic 5W-20 cSt @ 40°C (the W rating)- 45.9
Motorcraft Full Synthetic 5W-30 cSt @ 40°C - 60.0
GC 0W-30 - 66.8
The higher the number the more viscous the oil.
And just for giggles:
Castrol Syntec 10W-30 cSt @ 40°C - 59.6
GC, despite being labeled as a 0W oil, is actually thicker at 40°C than either MC 5W-30 or 5W-20 and is much thicker than Castrol's own 10W-30. Marketing at its finest.
5W-20s tend to run notably thinner at 40°C than 5W-30s. There can be significant viscosity variations on the same grade oil from brand to brand despite what they are labeled. The only real way to tell is to look at the PDS.