Oil in Doors and Sills

[ardvark]

If I was to pour used motor oil inside the bottom of the doors and inside the sills my theory is that it would help slow down any rust that is in there.
Has any member done this?
Are there any pitfalls doing this?

[gnu]

Err, it will make a mess when it leaks out.

Spray a product like Bilt Hamber S50 in through the vent holes, it's designed to do what you want.

[ardvark]

Yes I'm expecting to oil to seep out from the drain holes but after that stops do you think it'll work as a rust slowerdownera

[clf]

the oil will indeed seep out, including the oil you wish will give some kind of protection (and I know it used to be done years ago by brushing on to surfaces).

The Bilt Hamber product mentioned above will be cheaper than the environmental agency fine, as well as being quicker than making a rig to clean/collect the draining oil, waiting for it to drain/dry. As well as that, the S50 should come with a 360 degree lance to make it feasible to upper edges of the sills, and the S50 doesnt risk spilling out whilst you are driving on the road - so safer for others.

[AndySA]

Your car will stink of old engine oil!

[Darcydog]

As an ex motorcyclist I hate the idea of a car dripping oil on the road.

Vehicles leaking diesel are bad enough - but to deliberately cause a hazard by pouring used engine oil in sills etc is just not sensible.

As others have said - far better to use a product designed to do the job without causing a hazard.

I’ve used Waxoyl before and it was easy - stick the can in a bucket of really hot water and then spray! - goes on like water, flows into all the nooks and crannies, then sets semi solid.

No leaks - no danger to other road users.

[grivas]

Originally Posted by ardvark

Yes I'm expecting to oil to seep out from the drain holes but after that stops do you think it'll work as a rust slowerdownera

In a word No! Use a proprietory product, used car oil contails carcinogens and other potentially dangerous chemicals, a clear wax is what you need which solidifies forming a water-proof barrier, e,g waxoil which you spray into the panels.
Good luck.

[ardvark]

Using the oil was just a thought because after a service I have engine oil.

My next question is this:- The car I just got will have rust inside the sills and inside to bottoms of the doors,tailgate etc.
What I'm after is a treatment I can do to stop this rust getting any worse.
My previous tourer had rust in the sills and no matter how I cut it out it still killed the car as far as the MOT went.
My current car which I got on Wednesday a '53 Conny SE Tourer I want to make sure the sills,doors,tailgate etc don't sneak up and kill this car.

[Teflon]

Originally Posted by ardvark

…………. My next question is this:- The car I just got will have rust inside the sills and inside to bottoms of the doors,tailgate etc...………...

Not necessarily. A few years back I bought a small inspection camera that allows you to inspect sills etc. I've used it numerous times on my own '75 (which was rust proofed from the age of 3) and also on other '75s and ZTs at meets etc. The majority have been as clean as a whistle inside the cavities.

Cliff

[chris75]

It was normal practice going back about 40 years ago . Trick was , after filling with oil you had to go and visit someone so that it dripped out on their drive
I knew of garages that offered an oil spray service for the underside as new cars used to start rusting as you drove them off the forecourt !