Been lurking here for decades, finally had to ask something I seemingly can't find the answer to via search here, on various YouTube channels, & via Google Search. Note: I'm coming at this from gas-powered Euro car engine angle, not diesels.
If one doesn't care about:
- The miniscule fuel gains by 0w-20 oils currently spec'd by say, BMW & VW/Audi right now in a bunch of their vehicles
- The manufacturer's CAFE rating
- The fact 508/509 is dyed green
- The 1 in a trillon chance you'd suffer a serious engine breakage during warranty & a dealer actually caring, let alone taking the time to be sluthing what oil was in the crankcase, then denying your warranty repair
- Going 10k miles on a factory-recommended oil change interval (I do roughly 5k mi or 6-month change outs)
And: The vehicles are operated in hot desert urban climates that rarely get below freezing (32F), but for months out of the Yr operating in triple-digit daytime temps
And: The primary objective of the owner is preventing as much engine wear as possible while owning/operating the vehicles in above situation for long-term
With the above positions/facts around my druthers & my vehicles operational parameters, I'm trying to get a bead on these questions:
- Wise to go with a heavier oil (x-30w?) if vehicle longevity is the primary goal?
- Euro spec oil matter if not running it at long change out intervals?
- Brand/formulation of any given oil really matter if running 5k mi change intervals so long as it's a synthetic oil. i.e. Is running whatever's on sale at the time (assuming one has picked a specific wt of oil they want to be running) just as good at the end of the day as sticking to a particular name brand / specific product? Does it really matter if you run Costco Syn, Walmart SuperTech Syn, Mobil 1, Pennzoil Ultra syn, VW 508/509, or BMW FE17+ etc......?
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If one doesn't care about:
- The miniscule fuel gains by 0w-20 oils currently spec'd by say, BMW & VW/Audi right now in a bunch of their vehicles
- The manufacturer's CAFE rating
- The fact 508/509 is dyed green
- The 1 in a trillon chance you'd suffer a serious engine breakage during warranty & a dealer actually caring, let alone taking the time to be sluthing what oil was in the crankcase, then denying your warranty repair
- Going 10k miles on a factory-recommended oil change interval (I do roughly 5k mi or 6-month change outs)
And: The vehicles are operated in hot desert urban climates that rarely get below freezing (32F), but for months out of the Yr operating in triple-digit daytime temps
And: The primary objective of the owner is preventing as much engine wear as possible while owning/operating the vehicles in above situation for long-term
With the above positions/facts around my druthers & my vehicles operational parameters, I'm trying to get a bead on these questions:
- Wise to go with a heavier oil (x-30w?) if vehicle longevity is the primary goal?
- Euro spec oil matter if not running it at long change out intervals?
- Brand/formulation of any given oil really matter if running 5k mi change intervals so long as it's a synthetic oil. i.e. Is running whatever's on sale at the time (assuming one has picked a specific wt of oil they want to be running) just as good at the end of the day as sticking to a particular name brand / specific product? Does it really matter if you run Costco Syn, Walmart SuperTech Syn, Mobil 1, Pennzoil Ultra syn, VW 508/509, or BMW FE17+ etc......?
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