Same Here..... no problem

 

Intelligent response!

Oil analysis proves I can. Why waste oil if it is still working?

 

No kidding but imagine the money you could have saved by changing the oil when it actually needed to be changed rather than some Oil industry created 3000 mile time period. They want you to buy oil! You are their favorite customer.

 

I own 1997 f150, with now 131,000 miles. I switched to castrol sytec blend 30,000 miles ago. I do know for a fact I got 1.5 to 2 mpg better and the engine just sound's better and smoother. Is the sounds all in my head? Could be. But the Mpg is not. I have no leaks, I burn no oil and I still do not use any between changes. why did I switch? A old freind of mine has a 1999 f150 with 286,000 miles, and he uses synthetic oil and did not start using it until 90,000. I was chicken and only went half and half. Why chicken? Because of all the horror stories about going to sytec from reg with a high milage motor.... NOW about the 3,000 mile oil changes. Yep I still do that too. Am I stupid? Probally. But the fealing I get working in my garage, being under my truck, putting fresh oil and and new filter into her motor gives me a fealing that is worth the extra money I spend a year doing it. oH buy the way, I change my plugs to often also. You also have to consider the money you save spending a saturday in the garage and not spending it at walmart or lowes!!!!!

 

I'm seriously considering switching to synthetic for my second oil change since I have a V-6 in my '05 because that motor will obviously have to work alot harder than the 4.6 or 5.4.

Chris

 

I have a '97 with 191,000 miles on it. Would it be alright to change to synthetic oil with the high milage, or would it cause damage to the engine?

 

I use M1 synthetic and prefer synths to dino oil.

But if I was you...if it ain't broke, don't fix it.

Sounds like you are doing just fine.
Just curious, why do you want to change?

 

I dont have to take it easy, guess my comments bothered you huh?

I am in no mood to get into a pissing contest with you. I asked a simple question, dont need you or your Ford recommended answers.

I said MOBIL1 users, is that you?

EDIT: Thanks to all those who answered and stated there experiences with changing intervals for M1.

 

I've used Mobil 1 in all my vehicles since 1986. I usually change the oil and filter at about 8000 miles. I used to use Fram oil filters, but 2 years ago I switched to Mobil 1 oil filters. I've never had an engine problem in any of my cars, trucks, or vans.

 

I didn't recommend you an answer, but asked you a very simple question (what makes you think a filter only last 3,000 miles). Still see you are skirting the answer to my question, but no problem. And yes it's me, I've used M1 in my 00' Scab and now in my 04' Screw. Been using M1 on my 99' 328I as well.

EDIT: Your welcome

 

For what? You did nothing to help me.

 

..aaaa the great oil wars

 

See how all this gets out of hand!!!
3k oil changes is never reasonable unless the owner is parinoid for some reason or miss guided.
Hell 3000 miles is barely enough running to get anything accumulated in an oil filter let alone changing it.
These engines are controlled so well by the PCM programming that there is little carbon in the oil or wear from the engine parts due to the high grade of ' common' oils, that changing it so soon is only to make the owner feel good with little basis for it.
I owned an 85 F150 from new, it's still running. When the heads were take off for a valve job, the pistons tops had clean alum showing yet from new. That's how clean the engine was running. All the oil fitlers in the world of gold filled oil would not have done anything for valve seal.
Prove me wrong on any point.

 

Well, all this talk about syn oils have made me wonder if changing to syn oil would help my engine out since it has a lot of miles.

 

Let me help you to maybe understand oil filters a little better. First, they are rated by their Beta Ratio. This is a test whereby glass beads of known size and quantity are run thru the filter in a specific fluid only once. The amount of the glass beads filtered out is its Beta Ratio, single pass. Then the test is run again but this time the fluid is cycled thru numerous times. This is its Beta Ratio multi-pass rating. I don't particularly like the test because it does not spec viscosity, temp, flow rate, or pressure. I feel that all of these criteria would effect the results. ASTM claims that it doesn't. So accept the information as you like. Most filters will hit 90% filtration single pass. Some like K&N, won't hit that high single pass but rely on multipass ratings for their efficiency. In that arena, they do fine. As to the filter filling up and going into the by-pass mode. For an average driver that drives on asphalt, his filter will never see by-pass mode even at 15,000 miles on a modern Triton engine. Older engines like the old 460, 390, 302, etc., I wouldn't suggest trying to run one that far. The newer lean burn technology employed in most of todays engines has all but eliminated the dirty engine. Gaskets are far better than they were so external dirt stays out. Sludge is not much of a problem because of engine technology and oil formulations. You really have to have an engine that has some major defect to effect the oil and filter system. So, yes, you can easily run a OTC oil filter to 15,000 miles and not have a problem. If you have concerns over running your oil longer or if you just have the curiousity, get your oil analized. It is not a bank busting process. Most of the labs are less than $20.00. Blackstone, I believe, is still doing them for free but does not include the TBN which is the number that would reflect the actual life left in an oil. A TBN, using their test methods, of 1.0 is an oil that needs to be changed. Anything higher still has life in it. Might want to give it a try and start trending you engine via analysis so that you know by mileage when you need to change. Most often, it will surprize you just how long you can run an oil and still have low wear metals. In a Triton engine that runs great, the filter is not an issue.