Is it ok to put grease instead of oil on the part of metal that the line guide slides on? 

Yes, it’s fine. Some use oil and some use grease. I prefer grease after using both. 

Yes, it is personal preference as long as the grease is designed for reels.  I personally use grease for mine.

Is it ok to put a generous amount of grease on it?

39 minutes ago, Jonny15678 said:

Is it ok to put a generous amount of grease on it?

yes

I put oil on the actual worm gear and then coat the shaft that the worm gear is in with some grease to help the line guide slide on it more. Like others said mostly preference, I just feel having a thinner lubricant (oil) vs grease on the actual gear helps keep dirt from getting trapped in it. 

Grease is just oil with detergent added to it.  Either is fine.  I prefer a heavier oil.

"If it slides - use grease ; if it rotates - use oil" .

Not always.  You don't oil your trailer bearings

I use grease on all low profile reels worm gear.

The problem with grease in an exposed application is that is collects debris and contamination. It'll work but be diligent in maintenance and refrain from adding new on top of dirty. Heavy oil works best imo. 

I use clp from break free on the pawl gear.  The plastic line guide sliding on the aluminum shaft I leave dry.  I may get a little clp on it but my main goal is to keep everything clean.  I have been known to dab a little carnauba car wax on that rail and it seems to slide good for a long time with almost no dirt buildup.  More is less in most of my reel lube experience.  Lube that runs or is working when dry is best in exposed situations.

Depends on the reel. Some baitcasting reels like the Ambassaduer the level wind doesn't disengage during the cast. As DVT said grease tends be tacky and holds dust and debris. All you need is keep the pawl lubricated so it doesn't wear or stick and create noise. I just use reel oil or CLP BreakFree.

Tom

18 hours ago, Jonny15678 said:

Is it ok to put a generous amount of grease on it?

You don't want too much on there, I like heavy oil, but use whatever I have handy.

I only use oil on mine. AS DVT said I worry about grease holding a lot of dirt and being that much harder to clean off. I put a couple of drops of reel oil on mine when I go fishing.

Copious amount of light oil to mine... and keep a couple of new pawls on hand.

 

 

oe

I believe the user manual for Daiwa recommends oil on the worm gear. 

Most baitcasters have the slot for the levelwind facing forward and as you reel in line, dirt and grit can be thrown onto the worm gear.  Grease will collect grit faster than a light oil.  I use the same oil that I use on the bearings and apply it as often; one drop on each end and one in the center of the worm gear.  Never had a problem doing this and have never had to replace a pawl or worm gear.

11 hours ago, BobP said:

Most baitcasters have the slot for the levelwind facing forward and as you reel in line, dirt and grit can be thrown onto the worm gear.  Grease will collect grit faster than a light oil.  I use the same oil that I use on the bearings and apply it as often; one drop on each end and one in the center of the worm gear.  Never had a problem doing this and have never had to replace a pawl or worm gear.

I do the same as well for the same reasons.

 

I do the one drop, right, left and center every other trip.

Nope no grease on levelwind...when you cast any grime dirt sand what ever on spool will stick too the grease and wear out pawl and worm prematurely. Light coat of oil then qtip it off as you reel

Aways used ReelX on mine.  No problems for the last 18 years at least.

I never fish / cast in dusty areas. Bad for my  lungs.      ?

 

 Cough cough        

 

I just put a drop of oil on it. Hell I only own oil. 

I use the red BPS reel grease.  Just a VERY small amount.

 

If I'm out, or don't have any handy, a bit of Rem-oil from a micro-dropper will also do.

1 hour ago, cyclops2 said:

I never fish / cast in dusty areas. Bad for my  lungs.      ?

 

 Cough cough        

 

 

My allergies are already horrible this year, so I can relate.

its usually one of the first parts of a reel to fail, or something related to it. Wether grease or oil, if you are fishing in that schmucky water in frogging areas or grass or sedimenty waters in general, clean the gear often, in the summer on my frogging reel I have to do it every other trip because grass+algae gets stuck in it.

On 10/9/2018 at 7:53 PM, WRB said:

Some baitcasting reels like the Ambassaduer the level wind doesn't disengage during the cast.

this is for my  old ambassadeur conventional swimbait reel ^^^