"I use HD on engines, tires and wheel liners. I use 303 on other interior and exterior plastics and rubber. HD is far less expensive and I think it does best when lightly sprayed on and left to migrate. I would not leave it on interior plastic and it is not very practical to spray so much on other exterior areas. It leaves a slight film but it also washes off very easily. To me, this is good as it makes those areas easy to clean. I use it at 4:1 for a more matte look and 2:1 when I want some gloss. I little goes a long way. HD seems to have this magical property and migrates to surrounding plastic and rubber. Just a light mist on engine parts and walk away."
I agree with what this guy said on another forum. The Infinity Wax I used two weeks ago already faded completely so I decided to try Hyper Dressing at 4:1. This stuff lays and spreads amazingly well. By far the best of any product I've used in the engine bay. Of all the dressings I've used (303/Sonus Motorkote), Hyper Dressing lays the best. I would only use a 4:1 (I'm even thinking 5:1 next) as anything more is much too glossy for my taste. Unless you're detailing the engine by hand (I may try Polish Angel Engine), I think Hyper is the way to go. 303 isn't really going to offer more protection under the hood IMO. On plastic interior surfaces, it will due to the higher UV protection, but under the engine it's just another water-based dressing.
I guess you can look at durability two ways - having it come off easy is good as you said because it makes those areas easy to clean. For more durability I think something like Polish Angel Engine would be best because it contains oils, which nourish the plastics and rubber. Sonus would also likely hold up a bit better but I wasn't too impressed with Sonus.
Going forward I'll be using Hyper Dressing on all cars and if for some reason I wanted more durability, I'd use Polish Angel Engine.
**You literally don't have to touch this stuff. You spray it all over the engine and let it dry. Quite impressive.
I agree with what this guy said on another forum. The Infinity Wax I used two weeks ago already faded completely so I decided to try Hyper Dressing at 4:1. This stuff lays and spreads amazingly well. By far the best of any product I've used in the engine bay. Of all the dressings I've used (303/Sonus Motorkote), Hyper Dressing lays the best. I would only use a 4:1 (I'm even thinking 5:1 next) as anything more is much too glossy for my taste. Unless you're detailing the engine by hand (I may try Polish Angel Engine), I think Hyper is the way to go. 303 isn't really going to offer more protection under the hood IMO. On plastic interior surfaces, it will due to the higher UV protection, but under the engine it's just another water-based dressing.
I guess you can look at durability two ways - having it come off easy is good as you said because it makes those areas easy to clean. For more durability I think something like Polish Angel Engine would be best because it contains oils, which nourish the plastics and rubber. Sonus would also likely hold up a bit better but I wasn't too impressed with Sonus.
Going forward I'll be using Hyper Dressing on all cars and if for some reason I wanted more durability, I'd use Polish Angel Engine.
**You literally don't have to touch this stuff. You spray it all over the engine and let it dry. Quite impressive.