Factory sealant turns white engine bay yellow-ish?

[RMac42]

Here's what mine looked like before and after

Nice! Super clean. I'm feeling encouraged.

The crappy part is knowing that when these cars came off the boat and got to the dealer, this crap was supposed to be washed off with mineral spirits before the customer even got the car. Some cars even came with a bottle under the hood...but they didn't, because it was so shiny and looked awesome, they just fired them up and drove off...in Cali, they were yellow in a few weeks.

Very interesting! I had no idea. So clearly this is pretty common. Kinda freaked me out when he sent me that pic -- the rest of the car is so clean, I couldn't figure out what the deal was.

[RMac42]

Here is what it could look like after some "cleaning" ;D

Ha! I won't hold my breath for THAT... Beautiful.

[Mr. Tasty]

It is called Cosmoline

I figured it was an auto correct thing

[DER E30]

Cosmoline is gross... my bay is covered in it as well, but I'm not going to do anything about it (I guess) because I plan on a bay shave/wire tuck...

[IS300E30]

Here is what it could look like after some "cleaning" ;D

Wow, what cleaning product did you use and how long did it take for you to clean the M20 engine into a M power Engine? lol

[DER E30]

Wow, what cleaning product did you use and how long did it take for you to clean the M20 engine into a M power Engine? lol

Good question! I need some of that!

[AndrewBird]

Just rub the engine with several hundred dollar bills until it changes.

[lonestar22]

cosmoline is still used to this day

http://www.e90post.com/vpc/index.asp.htm