Spent sometime with Khyber this weekend.
Cleaned its engine after a long time.
Used Turtle presoak. Then dried the engine with a blower.
Before

After

There was some rust beneath the battery. So painted that surface after removing the rust.

Earlier, I used Turtle Presoak on Honda City's engine and the results were splendid.
I was not able to achieve such results on this car because of old/thick grease spots.
What I have noticed is that Turtle presoak is good for dirt, oil stains and mild grease spots.
But for older oil seepage like the one near gear box, presoak is not effective.
Is engine degreaser stronger than Presoak?