Can I use synthetic oil on my truck?

I drive a 2003 ford f 150 4.6 engine and it's time get an oil change.is it ok if I use the synthetic oil instead of high mileage one it take 5 20 and it has a 169000 miles on it

I'm looking for a PA system to put in my truck?

My truck is a 2011 Ford F-150 Platinum. I want it to be loud and have a variety of sounds ranging form Cop siren to Ice cream truck to animal noises. I also want one for a reasonable price. Something close to $100 not including installation.

1995 Ford F150 5.8L stalling in reverse only?

- cleaned IAC, no difference.
- added bottle of trans flush from the seafoam company, then dumped all trans oil incl. Torque convertor.
- replaced trans filter & pan gasket. (filter had not fallen down)

Only happens in reverse gear.

What is causing this?
Torque convertor?
IAC?
?

My car shuts off once in a while when in reverse?

I have. A ford f 150 in line v6 1996. It shuts off very few times when reversing to the left or right. Also the lights dim from time to time when I'm at a stop light. I have a new alt and batt only a week old

Alpine or kicker for speakers with some bass?

I just replaced my two front door speakers on my ford f150 with kicker speakers. And the kicker speakers for the back that I wanted are not available through best buy and I have a gift card I wanted to use, so I was looking and for the same price as the kickers they sell a alpine pair. Would those be just as good? No experience wih them and online each has it's fans. I was looking at ks series 6x8 for kicker and the alpines alpine type r 6x8. I don't need a subwoofer but I do want some bass from the speakers

Added (1). I planned on buying all speakers at once but when I made the hour trip to the store they didn't have em all in stock

Dealer rip off? Or is he right?

We bought a Ford F150 2005 from a local dealership a few months back, after1 week, the truck had engine problems. Before taking it back, my husband took the vehicle to a Ford dealer and they printed out the error codes. We took it back, dealer was upset with mechanic, told us he paid him a lot of money to fix it and that he apologized. He took the vehicle and gave us a courtesy vehicle for the meantime. We ended up not hearing from him for over two weeks, but then finally got it back, he showed us a receipt for $3000 and we got our truck back at no charge. We felt like he handled the situation really well. At that time there was extensive engine work done to it and they told us that they've done an oil change. I quickly realized our ac now wasn't working, and filled up the freon myself. So I assumed the mechanic simply forgot about it. And with them handling everything else well, we did not complain. 3 months later, same problem starts Again. We call the dealer, he says bring it in, he'll take a look at it. Husband went to Ford dealer again before dropping it off, read out error codes, same exact problem (plenty of engine misfires). He gave us a courtesy vehicle and we did not hear from him for 3 weeks. So now he called, said it's our fault, because we did not get an oil change done. We told him, that he did get one done and that we haven't driven it for 5000 miles since. He says they never changed the oil and that the mechanic only put a "temp" oil inside? Say what?