Dec 2 2021, 11:57 AM
QUOTE(The Hunt Begins @ Dec 2 2021, 10:23 AM)
Ahhh, I see I see.
Yes, I think it make sense waiting for a minute or 2 before turning the A/C. By then, our Engine Oil has already done its job travelling around the engine. Thank you for your input.
Even the big old 4.0L, 5.0L V8 start circulating engine one immediately, and complete full circulation in less than 7 seconds.Yes, I think it make sense waiting for a minute or 2 before turning the A/C. By then, our Engine Oil has already done its job travelling around the engine. Thank you for your input.
Small 1.5L, 2.0L engine probably take half the time. And modern engine with low viscosity engine oil and variable load engine oil pump would be even faster.
If you really worry, wait 7 seconds. Actually no need at all, modern car automatically off the aircond during start. On top of that, due to environmental protection the engine will run higher rpm during cold start to warm the catalytic converter ASAP. Why was the extra power generated during the time.
On top of the on top of that, modern AC compressor is variable displacement without magnetic clutch. AC doesn't just on/off. They are actually not new, some 10 years+ old cars already have it. Japanese should start using them over 5 years ago.
https://www.toyota-industries.com/products/...essor/variable/
On top of the on top of the on top of that, we now have electric driven AC compressors that not coupled to engine belt. Used to be only Hybrid, PHEV, EV, but now we have 48V vehicles also use them.
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