Need to Change Factory Filled Oil...?
#21
My semi-educated guess as to why JLR (and some other automakers) specify 0W-20 oils in some of their engines is that they are chasing the highest CAFE numbers that they can reach, which is also a reason that they have that silly engine start/stop feature.
I live in the Southern California mountains and the temperatures do sometimes dip down below 30 degrees F. However my Jaguar won't ever leave the garage during those times as I have a Mazda AWD SUV for driving in frigid or inclement weather. In the summer months, daytime temperatures in the nearby valleys or desert areas that I may traverse can exceed 105 degrees F or even peak at about 115 degrees F. The 20 weight part of that oil seems a bit thin in those circumstances and the 0 weight part doesn't seem necessary if I am not driving in sub zero temperatures during the winter months. A 5W-30 would seem to make more sense. I won't ever track the car.
However....while under warranty it seems prudent for me to use exactly what JLR recommends and that includes using an OEM filter.
I live in the Southern California mountains and the temperatures do sometimes dip down below 30 degrees F. However my Jaguar won't ever leave the garage during those times as I have a Mazda AWD SUV for driving in frigid or inclement weather. In the summer months, daytime temperatures in the nearby valleys or desert areas that I may traverse can exceed 105 degrees F or even peak at about 115 degrees F. The 20 weight part of that oil seems a bit thin in those circumstances and the 0 weight part doesn't seem necessary if I am not driving in sub zero temperatures during the winter months. A 5W-30 would seem to make more sense. I won't ever track the car.
However....while under warranty it seems prudent for me to use exactly what JLR recommends and that includes using an OEM filter.
#22
#23
Despite the fact that almost all owners are religious about what weight to put in the supercharged V8s 5.0, I have found that the engine sounded way healthier and quiter with 5W-30 oil. Kinda makes me question JLR's choice of 20 weight oil and is it really for tolerances/clearances or is it for fuel economy?
#24
#25
My last Corvette, 460 hp V8, had free oil change service at the dealer at 500 to change out the orig factory filled oit with Mobil 1 synthetic oil & filter.
I don't think we need to do that with our 550 hp V8. But does any here change out their oil before they hit 10000 miles or 1 year oil change at the dealer...?
I'm sorta old school, & with 95 degrees all summer, still thinkin' I should do an oil change at 5000 miles on my own first.
Thoughts?
I don't think we need to do that with our 550 hp V8. But does any here change out their oil before they hit 10000 miles or 1 year oil change at the dealer...?
I'm sorta old school, & with 95 degrees all summer, still thinkin' I should do an oil change at 5000 miles on my own first.
Thoughts?
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harvest14
XJ XJ8 / XJR ( X308 )
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03-24-2019 12:51 PM
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