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Gas smell only on cold start?
(lemmy.world)
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this post was submitted on 28 Oct 2023
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Totally normal for any car to run rich, especially on cold days while the engine warms up. Rich just means the engine is operating with slightly more gas than necessary as it's safer during warm up though its less efficient and that's why you smell gas. The un-burned fuel is just going right out the tail pipe. Sniff back there to confirm.
Interesting! I am pretty sure the smell is stronger by the exhaust. That would make sense!
So even if it just seemingly started out of nowhere, nothing to worry about?
I really appreciate the reply!
Nope no problem it's just the colder weather. It just needs to operate in the warm up mode for longer to heat up the oil and coolant until it go into normal operation and stop wasting gas. Perfectly normal. Some cars are a lot more aggressive for warm up. Subarus, especially old ones, can sound like a broken tractor while warming up then the engine quiets down and sounds normal.