I have been told to put 10w 30 in my 98 ford ranger truck. It has 94k miles. what do you guys think

 

Motor? Also, it says what weight to run in your owners manual. I wouldn't run anything but what it says...

 

Sure. I usually run 10w30 AmsOil in the Summer and 5w30 AmsOil in the winter.

 

it says 5w 30, but i was told that its not as good as the 10 w 30. Just trying to figure out why,

 

i run castrol syntec and 10w 40

 

In my 3.0, I used to run Amsoil 5w30 but now I'm running Royal Purple 5w20

 

That is way to thick for our motors....

 

Yeah, my GF's 99 Taurus with the Vulcan (same 3.0 as the ranger) I run 5-20 motorcraft. Thats what the dealer told me to run....

 

i run 10w30 mobile 1 in the summer and 5w30 mobile 1 in the winter

 

5w30 mobile 1

Extended 15k mile changes.

I use their filter as well.

 

i run 10-40 dino oil also. course my engine has 165k on it. i run it because the engine is high mileage, want it to last a while, and socal heat it warm all the time. plus she burns a quart an oil change 3k miles so she slowley getting old and thirsty.

 

Your situation is a little different, Your motors age and mileage are big factors. Newer engines have tighter tolerances, especially Ford modular motors. The recommended weight oil for my truck (I think him and I have the same motor) is 5-30. I just think 10-40 is way too thick...

 

In the summer, I think nether weights will have any affect on the motor at all. It's when it gets below 32 that the thinner oils really make a difference. I ran 0w-30 in the winter and 5w-30 in the summer before I started using Amsoil. Now I just run 5w-30 all year.

 

Motorcraft 5w30 Synthetic Blend in the summer
Motorcraft 10w30 Synthetic Blend in the winter...

 

ford has a sticker on mine says run 5-30. oh well it does well, atleast it got some oil lol. but it getting thirsty for a quart every 3k miles is not good nor bad i guess. showin her age i reckon.

 

^^^ Girls gettin old thats all....

 

5w30 Mobil 1 Synthetic

 

had an 84 chevy s10 blazer. 2.8l auto v6, lol it got to the point of a quart a week. bought a 93 aerostar and parked the blazer for a while.....sold it to friend and the engine burned up on him 2 weeks later. ran like a champ till the end. it only had 305,000 on it. it got new engine and is still kickin.

 

I run royal purple synthetic 5W-30, recommended weight from dealer-and posted on oil cap

 

Why would you run a higher viscosity (cold) in the winter?

 

had that backwards......5w30 in the winter and 10w30 in teh summer...

 

Me too.

 

5w20 royal purple

 

Mobil 1 full synthetic 5w-30

Motorcraft filter

 

mobil 1 5w30