He was looking at a red stain. (Hint: What)
There was only one thing to do. (Hint: How)
Both fluids were red. (Hint: What)
The power steering fluid was at the proper level. (Hint: Which)
A small leak could result in a damaged transmission. (Hint: What)
It could cost $2,000 to repair. (Hint: How)
He wasn't sure about how to check the level. (Hint: What)
He found the instructions in his manual. (Hint: Where)
He ran his engine for 15 minutes. (Hint: How)
He breathed a sigh of relief. (Hint: How)