What should I use on underhood plastics?

david79z28

david79z28

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This is my 2010 Camaro. 15k miles, never sees inclement weather. It's turned into a garage queen.

What should I use to protect the underhood plastics? I currently have Meguairs M40, Meguiars natural shine protectant, Mothers VLR, and Ultima trim and tire guard. Should I use something else?

Or should I just keep doing as I have? Currently I clean periodically with a rinseless wash, dry, and don't use any Protestant.


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After a lot of research I decided on Sonus Motor Kote for my 2016. I haven't used it yet, but it sounds promising.
 
Sounds like you have quite a few products already to use up but can't go wrong with a staple like 303 Aerospace protectant.

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I've used McKee's tire coating on my wife's ls3 intake and cai (removed the engine covers). Held up pretty well. Just produces a mild smell for a couple of days when the engine warms up.
 
TMQ said:
Looks really good. If the system you're using is working for you then leave as is. If you want to "explore"
other products or to find ways to save time give Blackfire a try...

For cleaning/washing:
BLACKFIRE Wet Diamond Waterless Wash, waterless car wash

For protection/dressing:
BLACKFIRE All-In-One Trim & Tire Protectant, tire dressing, tire protectant, whitewall tire cleaner

Picked this idea up while I was at Competition Ready Class. Really changes things under the hood!

Tom
Click to expand...

Tom's got this one nailed. Check out this thread from Mike Phillips...

http://www.autogeekonline.net/forum/how-articles/94129-7-minute-engine-detailing-blackfire.html
 
I think from what you have listed I would try the Ultima TTGP. That or a synthetic spray wax or sealant. Something that will dry well and not leave a film behind that will attract dust.

I don't have any experience with UTTGP yet though, but did just pick it up.

Or just keep on keeping on, looks great!
 
I think with the little you drive it you are fine sticking with just rinseless washes.

However, I have had good luck with Meguiar's D156 under the hood on plastic, rubber and paint. Plus you will have a ton of D156 left over for using on the paint. If D156 lasts a few weeks on the outside with my daily drivers, it should last months under the hood.
 
I would've used the Meguiars M40.


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Mantilgh said:
I think from what you have listed I would try the Ultima TTGP. That or a synthetic spray wax or sealant. Something that will dry well and not leave a film behind that will attract dust.

I don't have any experience with UTTGP yet though, but did just pick it up.

Or just keep on keeping on, looks great!
Click to expand...
UTTG can be finicky on some surfaces. It's great on softer, textured trim, but on hard smooth plastics it will get tacky and really hold/attract dust. On those Surfaces, it needs to be impeccably pre-cleaned and any excess must be immediately removed (and then I'd give it a second wipe with a dry towel to be certain).
 
I kept seeing 303 AP and Hyper Dressing come up in my research. I ended up going with 303.

I also have DLux that I could use, but I feel as though it might be too finicky for all the nooks and crannies, and heat and vibration, that exists under the hood.
 
My undehood favorites are Sonus Motorkote and Griot's engine bay dressing. I give the nod to Sonus, just because it's not an aerosol type. You need to cover up unwanted areas with aerosol over-spray.

I've also used 303 and it's seemed to attract some dust. The Sonus just left a beautiful new finish behind, but it is a little pricey.
 
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