Asking other people for their opinions on your personal decision to decorate your truck strikes me as an odd question. I'm not a fan of plastering my truck with stickers, but that's just my taste. Each to his own. I have four stickers on my truck, each with a special meaning to me:
- a ZA white oval nationality sticker because I used to live in South Africa.
- a small sticker in my rear quarter window from the Land Rover Owners Club of KwaZulu Natal, South Africa, because I am a current member.
- a Sani Pass sitcker because I've driven up it a few times and had some good adventures in Lesotho.
- a Union flag because I am a British citizen. (Fun fact - it's only called the Union Jack when it's flown at sea)
I think any car plastered with manufacturer's logos looks like shit. Even race cars that are covered in logos. I don't care what oil you use, I can see you have aftermarket accessories bolted on - I don't need a sticker to tell me that. That crap looks like a rolling billboard. The only extensive stickering I find halfway interesting is when people put the flags of the countries they've driven through on their vehicles. That tells a more meaningful story than what products you want to advertise. Do whatever you want. It's your truck.