I have an 2002 screw with about 50,000 miles I really don't like changing my oil, so I was thinking of switching to a full synthetic and letting go for a longer time between changes. Has anybody used Amsoil? How long should I let the oil go?

 

How often do you change it?

 

I use the Amsoil 5w30 in my 1999 F150 5.4L engine. It is good for ONE year or 25,000 miles with a oil filter change at 12,500 miles.

 

I change the regular oil every 3000 miles

 

I use Mobil 1 synthetic. I go 6 months or 7,000 miles.

 

m epersonally dont like to go over 6000 miles between oil changes. ya the bottle says whatever mileage but the epa fuel economy on the window of the truck also sed alot higher mpg then i get when i bought it. i have heard great things about amsoil and i personally run 5-20 mobile one.

 

I don't see any reason to change regular oil more often than 5,000 miles. But it seems to make people happy. It also makes people happy to run very expensive oil in their engines. Having said that, I would be willing to bet that the guy that goes 25,000 miles between oil changes, will probably get as many miles out of his truck as the guy that goes 5,000 miles, UNLESS.... If you're in extremely dusty or wet conditions. In that case, I wouldn't recommend 20,000 miles because no matter how good the oil is, it still gets crapped up with crap. And a lot of that crap is too small for a filter to grab. So, in my opinion, as long as you change it every 5000 miles, you'll be fine. You might could even go longer. Oil tends to lose its viscosity over time, however, so keep that in mind........

I've never read the owner's manual to see what it had to say. If it says it's ok to go 25,000 miles on synthetic, then go ahead.

 

Folks, an oil change is not just about the oil. The regular 3,000 to 5,000 change intervals are important for a secondary reason. It provides a scheduled opportunity to check all fluid levels, belts, hoses, etc. It's called preventive maintenance. It's called sticking your head under the hood and taking a good look around while changing the oil. It's about poking around underneath while changing the filter. I can't help but laugh when reading about how people spend good money on expensive oils and spend more on oil analysis, when all they really need to do is change the darned oil. If nothing else, a quick trip through the zippy change or wally world. We're talking around 20 bucks and 10-15 minutes to keep clean oil in the engine. There is no better protection. I might keep some fluids in my truck for 25,000 miles, but it sure won't be the oil.

 

I use Amsoil and that is all I am going to say. This is a topic that brings out the worst in people and I think we should all just agree to get along and accept each others choices. ;-)

 

I don't know about 25K oil changes. But, I'm considering installing Amsoils bypass filter.

 

Norm, if your reply was directed at my comments, you need not think that I question your choice of oil. I accept the fact that you have every right to run olive oil for 50,000 mile intervals if you wish. I can't understand how it is somehow beneficial at best, or perhaps maybe harmful as I suspect, to run any oil for such a long interval and I don't see the economic advantages of doing so. Yet I accept that some do. The thrust of my comments was that very often when people choose extended change oils, they let preventative maintenance slip because they aren't required to pop open the hood as often. I'm rather certain that Amsoil is a fine oil. I just don't trust running ANY oil for extended periods. If filtration technology should reach the point that oils can in fact be kept clean for extended periods I still wouldn't consider it for the same reasons. Now, the worst hasn't been brought out in me and I can get along with you or anyone. There is nothing wrong with objective debate. It's how we learn from one another.

 

Every time I change my oil, It is as black as tar, and if I get some on my hand, It is really hard to get off. Now, had I not changed it, all that crud would keep circulating around the engine.

You can put whatever you please into your engine- Amsoil, Napa, John Deere, or Dollar General. It probably won't matter in the long run, as long as you change it in a reasonable ammount of time.

5000 miles = 100 engine hours @50mph. 100 hours is the standard oil change interval for almost every machine I've encountered.

I have an idea for people that want to go 6,000-7,000 miles. Why don't you buy a bigger oil pan, or have your original one enlarged? If it held 2 more quarts of oil, that could increase your service interval considerably. Might want to consider switching to a larger oil filter to handle the load of a longer change interval.

 

No Dixie I was not directing my comments towards anyone. I would not run my oil to 50K either.

 

QUOTE:

"Vehicle manufacturers are pushing for extended oil drain intervals.
Vehicle manufacturers in Europe have been recommending extended oil drains for years. In fact, the average drain interval in Europe is 10,000 miles. Vehicle manufacturers in the United States are definitely coming around to extended oil drains as well. Most owners manuals from recent model vehicles recommend 5000 to 7500 mile oil drain intervals. In addition, oil life monitors have become increasingly common on today’s vehicles, allowing and encouraging motorists to increase drain intervals up to 12,000 miles, even when using conventional oil. Vehicles equipped with an oil life monitor no longer recommend oil changes based solely on mileage. The system measures engine operational data such as temperature, revolutions and speed to determine when the oil is nearing the end of its life."


http://www.lubeoilsales.com/Artical_Exxon%20.html

 

I run the regular Mobil 1 Full Synthetic. On the bottle, it says recommended for the change interval specified by the manufacture, and that is 3,000 miles. I don't trust the extended intervals. You can put all the hi-tech $10/quart oil in your engine you want, but you can't convince me that there is a filter on the market that can keep cleaning your oil for that long. From what I gather, all these expensive oil filters do is allow dirty oil to bypass the element once it gets clogged.

Another way of looking at the 3,000 mile interval is this... The argument has been made that because oil technology has come a long way since the old days when 3,000 mile intervals were specified to set the example. So look at it this way: If the oil is better and you still change it 3,000 miles, then you're getting even better protection.