Mixed fuse types?

[bluezeus]

I bought my '85 Cutlass Supreme Brougham from my mom's boss early last year and I've been playing a constant game of catch-up on the maintenance since. The first time I ever started her up, she sounded awfully loud and rough so I checked her oil. There was absolutely nothing on the dipstick and a tendril of smoke floated up when I poured some oil in her so you can probably tell what kind of care this guy took of her.

Okay well last night I went to check/replace the fuses in the car because the underhood light won't work even after changing the bulb. The guy at the autopart store sold me tube fuses and promised they were what I need. When I opened up the panel, I noticed that there is a mixture of tube fuses and the larger blade-type ones stuck in there. The tube fuses that are currently there look like they fit in just fine, however the blade ones kinda look like they were jammed in there funny. The sides of the blade fuses touch the little conductors that would touch the ends of the tube fuses, but they seem to be at odd angles. I've replaced the mini-blade fuses in my husband's truck and they all looked tidy and uniform so this seems odd to me. Also, the transparent colored plastic parts of the blade fuses are dark and look a little fried. I didn't want to mess with it in case I upset some sort of delicate balance that's kept her running so far, so I haven't done anything to it yet. Can anyone tell me if it's normal for this type of car to have both types of fuses in its box? The original owner's manual which I found in the glove box seems to show only tube fuses in the diagram but it isn't specified in the book itself what kind to use. Also, if the blade fuses aren't supposed to be there and have bent or damaged the fusebox, is that something relatively easy to have replaced or will it cost me an arm and a leg at the mechanic?

[Mrbizness1]

Some GM vehicles in the 80's had mixed fuse boxes,most of the fuses were the blade type with a few tube ones. I'm not sure what you mean about fuses at odd angles, they should be straight across.
FYI Most underhood lights on Olds vehicles will come on when the hood us up with the headlight switch on. Many also have a built in mercury switch so be sure the light bracket is pushed up against the hood ( not bent down) or it won't work.
If the oil level is just below the dip stick, you still have a few quarts in the motor.

[bluezeus]

Thanks for the info!
What I meant by the fuses being at odd angles is that while the slots for the fuses are in a neat line, the fuses are tilted up and down, looking like crooked teeth. That's what really made me wonder about them belonging there most of all.
When I put the oil in her that first night, she took about 4qts to come up to the dipstick range so I still think she was pretty empty. I took the car to the mechanic the next day and they had nothing good to say about the mess they found in her but she seems to be okay now.
The light bracket is bent down a bit. I'll straighten it and see if that helps.
Thanks again for the help.