Apparently, the engine compartment and trunk of my car have been treated with Cosmoline, a rust treatment from the 70's. (Thanks to John_in_Va for naming the culprit.) As a result the whole engine compartment and much of the trunk have yellowed horribly. Attached is an image where you can see: 1.
Cosmoline Creeper Coat (Water-Displacing Rust Inhibitor)
Cosmoline/yellowing clear coat removal
Cosmoline/yellowing clear coat removal
Cosmoline Removal From Painted Surfaces?!? - BMW Discussion - WI BIMMERS - Wisconsin's BMW Community
How to remove Cosmoline. Quickly. Easily.
WATCH !) easy clear coat removal with simple product !
Wanted tips or tricks to remove old cosmoline/cavity wax
Wanted tips or tricks to remove old cosmoline/cavity wax
How to clean yellowed car paint / ceramic coating / Tar removing process / speed custom
A&L Cosmoline Remover (1 gal.), Solvent-based transit coating remover effectively removes cosmoline and petroleum-based coatings., It is easy to use
Malco A&L Cosmoline Remover (1 gal.)
A&L Cosmoline Remover will quickly and easily remove petroleum-based transit coatings and cosmoline from vehicles. This solvent-based formula is safe
MALCO A&L COSMOLINE REMOVER
Cosmoline - Industrial Grade Long-Term Rust Preventive
Cosmoline Remover