Give GM bug and tar remover a try, just apply to a cloth and they wipe right off, stuff is cheap too.

 

Do you want the simplest and cheapest method? I've been doing this for over 10 years with my travel trailer and I've yet to damage any paint or decals. About 2-3 ounces of household bleach mixed in with your usual pail of carwash solution. The streaks come off quickly as you do a normal washing.

 

Would that be 2-3 ounces per gal?

 

Less like 2-3 ounces to 1 1/2 to 2 gallons.

 

i will be taking mine in to the truck washing bay and spendiong about $75 in quarters and another $75 in cleaners. lol... ikeep it in the woods and it is all pine trees. gets pretty nasty. i will try to remember to get before and after pics...

i just bought a gallon of "purple power" for $5. not a bad price. hope it works ok.

for the most part though i will be using the good ol black streak remover. with some good old fashon elbow grease. maybe a coat of wax to..... that's a whole day.

 

2-3 ounces of bleach to 1 1/2-2 gallons is about right.

Be sure to test it on the decals first. It's never done any damage to any of the decals on my Mobile Scout trailer but other companies may use less durable or cheaper decals.