Cigarettes were also sold in vending machines for a quarter a pack or 21 cents over the counter.
Using gasoline as a solvent for cleaning greasy parts, or a mixture of gas & diesel was quite common since it was cheaper than having the white gas drum refilled before time to fill all 3 tanks. Sometimes even today I still use a 50/50 gas diesel mixture when cleaning greasy parts, not my go-to solvent anymore since there are detergent solvents which can almost do as good a job nearly as fast.
Silicone before it cures can be blended quite well with many products or the excess cleaned and wiped away. I use the original Dawn liquid dish washing detergent on the tip of my finger to shape the calking joints and on a paper towel to wipe away the excess, but WD-40 works great as well.
KP has explained how silicone can be utilized in many different consistencies of thickness, buy using varying amounts of different chemicals The oner thing he may not have explained is many or most of these procedures should be done with caution and in well ventilated areas. But then again rattle snakes don't have a warning label on the top of their heads either but most of us wouldn't pat them on their heads