Mines always clean cuz I never wear it
Having a back up that’s always clean is a good idea tho
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have you tried rubbing some cooking oil into the stain, it’ll break down the tar, then rub some washing detergent into cooking oil into the stain. No guarantees that will do anything but make a mess in your laundry room as you drip cooking oil everywhere.
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I soak the whites in ethanol then throw them in the laundry. They’re still white.
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The reason lab coats and chef coats are traditionally white is for the same reason:
It shows that you are careful and work clean, in an environment where a slip up can easily stain your reputation- a clean white coat shows that you are doing your job meticulously and professionally
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see: Washing Machine "Salad Spinner" tek
substitute labcoats for biomass. use rm temp solvent.
Edit: bonus points if you make distillate => carts from the wash.
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Should have noted that my comment was rhetorical and more of a jab for having had to wear lab coats when I knew what was being done would irreparably damage the coat. Processing to crude is often a messy job, and the stains (especially when working around @cyclopath) are inevitable. I’m familiar with the reasoning behind white, but for those who know me, it is a color they never see me wear outside the lab. I’m religiously opposed but no one seems to grant me the exception. Haha. 
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I only wear white after labor day
And every day is Labor Day for me
Work yourself to death 
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I agree, but I usually had the occasional splash back while on the saute station daily.
My next vehicle will be white however. Clean!
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Monthly reminder that you’re not the sum of the things you do for work 
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Whatever you do DO NOT MIX isopropyl Alcohol and bleach! It makes chloroform!
Came very close to learning that before asking the all knowing one. Had a bunch of rags that were still soaked in alcohol and was about to dump a bunch of bleach on them in the washer. Rule number 1 of my top 100 rule number 1’s. Don’t mix any chemicals before researching the reactions!
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This disclaimer belongs at the top of every thread. Haha.
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Vinegar and bleach also. No mix. Chlorine gas. Really you should be doing a simple google on chemical mixing before any unknown or questionable solutions get concocted.