Comments by "Beer_Dad" (@Beer_Dad1975) on "I ran a BMW \u0026 Lexus with no oil! Which V8 lasted longest?" video.

  1. It's not surprising at all - the finer the tolerances are, the quicker something will cease - therefore all this demonstrates is the UZ engine is probably engineered to higher precision than the N62.
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  2. All this proves is that the Lexus's tolerances are probably much higher than the BMW - run a vehicle with no oil, the one with the biggest machining gaps will usually last longer.
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  3. The S62 is pretty shit though. I think there are likely 2 issues here - 1 is the UZ is a much more precisely engineered unit than the S62 - fine engineering tolerances mean the bearings, starved of oil, would overheat more quickly than in an engine with lower tolerances - so the engine ceasing up first more likely shows it's better engineered than the BMW unit, not worse. Second, of course we don't know the history of either engine. Of course from real-world statistics, we know the S62 is a piece of shit with multiple fatal engineering faults, whereas the UZ is one of the most reliable V8's ever made - possibly the most reliable mass produced quad cam V8. Ultimately, running an engine well outside of its service specifications tells you nothing useful at all.
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  4. I'd also point out, you run a car with no oil, if it has poorer tolerances, it'll usually last longer (depending on the failure point - which we don't know) - therefore the Lexus is probably engineered with finer tolerances & therefore the superior piece of engineering.
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  5. Not really, an engine with low engineering tolerances will likely run longer with no oil pressure than one more precisely engineered.
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  6. More likely the Lexus engine has much finer tolerances than the BMW unit, so would have overheated the journals more quickly and ceased, whereas the BMW probably had plenty of slop in it from their slap-dash engineering, so didn't overheat so quickly.
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  7. Not surprising at all - lower engineering tolerances mean it would have stayed cooler without oil pressure than the superior engineering tolerances of the UZ. This is why BMW V8's all use piles of oil, and Toyota V8's do not.
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  8. Exactly so, also the engine with finer engineering tolerances will likely seize up first... so which was actually the "better" engine here?
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  9. But the BMW lost? Poorer engineering tolerances means less heat when there is no lubrication - that's the only reason the BMW kept running - because it's poorly machined - that's also why BMW V8's use a lot of oil and Toyota V8's do not.
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  10.  @ndositwechizimbi7299  Keep being a fanboy - anyone with an engineering background knows that if you starve an engine of oil, if it has finer engineering tolerances, it will heat up and seize up quicker - so this just proves the BMW is more poorly engineered than the Toyota.
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  11. This is not an experiment in any way, shape or form - no controls, no measurements etc - and in fact I'd say the "result" favors the Toyota engine, since an engine with finer tolerances will overheat and bind up more quickly than an engine with lower tolerances, when starved of lubricant - so perhaps shows the BMW's tolerances are poor - which, well everyone knows the S62 consumes oil like a motherfucker, whereas the UZ does not...
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