undercoating and/or oil spray. A poll of sorts...?

[fiero308]

ok everyone; a subject near and dear to our hearts; given the date......
What is everyone's experience and impressions with various types of oil spray and/or undercoating; including type, materials used (ie oil and wax mix etc), longevity, effectiveness and costs?
I was going to do a poll but I think there is too much to cover with a few questions, so if we answer the above few items that might be a start.  Time to think about it.
 

[fiero308]

And I will start it off:
I have been going for the sort of conventional 'dripless' oil sprays.
They claim that they use oil mixed with a wax and that it creeps into a lot of areas, which it DOES seem to do.
Observations: it doesn't drip (unless it is gone by the time I get home! )
It makes quite a mess of the engine compartment BUT a few years later or the following summer, when you wash it off, everything looks brand NEW!  so there is a biggie right there.
It DOES seem to be a waxy substance and not very liquid at all, which would account for the no-drip;
They do NOT go into 'sealed-off' areas; ie pop any access plugs etc UNLESS you specifically request it, but then you are responsible for any results/mess/complications (ie oil on the door glass etc); I don't know if this is different from other places but I think some DO go into every nook and cranny;
Cost is in the vicinity of $75 or so for a regular sized vehicle; a full size pickup or a minivan etc I think is more but check;
They do the job in 10 minutes or less, which tells you about how much effort went into the application, I guess.  But
you get what you pay for I suppose.  I would like to hear from some of the people who have done the 'proper' rustproofing; year after year, and have owned the car long enough to have qualified observations.
NEXT?
GP
 

[dguy]

My father pretty much swears by "Crown."  The mid-80's F150 that they bought when I was in my late teens, and has always been winter driven, is still solid from nose to tail.

Haven't owned/driven any rust-inhibited vehicle long enough to have my own opinion...  yet. 

[fiero308]

well THAT would look like someone has a sponsorship going.........
I think it is a bit expensive but if it works that is worth a lot; good to know and excellent input.  Thx, Don

gp

[aaron88]

Oil might have a tendancy to get into some places that something that doesn't flow (or drip) might not.

Aaron

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[fiero308]

yeah, that is the trade-off and the big decision for me, actually.  Oil DOES creep, really well!  Look at any home heating oil tank.  Eventually every pipe joint and connection shows oil staining and you can't help but smell oil, even tho you aren't supposed to.
But if it is too thin, it can get washed off, too.  And the thicker products are definitely tougher to wash off; I have found that out when trying to cleanup the underhood area.

And I also wonder if the pressure spray sometimes forces particles of that stuff into electrical connectors etc.......
but the best time to do any sort of spray is long gone; it should be done during the heat of the summer, when the high temps help it stay thinner and to creep the most.

I am going to be going to one of these places with my rice-mobiles shortly; will give an update of impressions and perceived value after.  I am tempted to do two different places and types for comparison.
gp

[dguy]

well THAT would look like someone has a sponsorship going.........
I think it is a bit expensive but if it works that is worth a lot; good to know and excellent input

Well for what it's worth, Sacha's car received the Krown treatment yesterday.  't was a bit under $130 after Dalton & Paul took their cuts.  I don't know if all shops who apply Krown's products have the same pricing scheme, but this one has the same rate for any size of passenger car.  Trucks, vans, and SUVs are more expensive however.

Not knowing how "far" the shop would go with the application or just how far the material can creep, I went to the trouble of removing the wheel well liners & the rubber splash guards in the rear wheel wells before dropping the car off.

Well I can certainly say this--they were thorough.  Nothing metal went untouched that I can see, save for the exhaust system & brakes.  Now all we can do is hope that the stuff is as good as it claims.