Never ever change your oil ..?

if you want you can do that. to rebuilt your 328 motor that is 15.000 to 20.000 that is if you have money to burn.

 

I had a Chevy truck that I put 320k miles on before I sold it. I think the first 1 or 2 oil changes were on schedule, after the it was 15k-25k between changes.....every spring and fall whether it needed it or not

The ferrari uses a quart every 1000 miles or so...so I guess really by the time it would need to be changed, it already has been. The truck used a quart every 3000 from the day it was new until the day I sold it......that might be the answer here, if the oil is being consumed at a decent rate, it is being replace even though the oil change frequency is every low.

 

good for him

 

I'm just not ready to take the risk. The change (filter and oil) is worth the $90. JMO.

 

Well, I've had some cars with "autochange" oil -- by the time the oil change mileage came up, it had used/leaked all the original oil anyway. I certainly wouldn't try that on something I cared about.

More to the point, I wonder if the operating conditions in the trucks is more conducive to that kind of maintenance schedule.

 

http://www.motoroilbible.com/two.html

 

so what is he saving?

even a cheap oil filter for a comercial diesel truck is at least $10 at 3-4 a month that's $90-$120 every three months.

I can's see where he is saving any money. I have seen street cars with 50k plus miles on th first oil change. The cam cover was so filled with sludge it had to be chiseled off. Sludge had formed a perfect casting of the underside of the cover.

The point of having your oil changed on at least a bi-anual schedule is to have a look under the car once and a while to catch other issuses before the become worse or even dangerous.

 

Think he would be doing that if he had Ferrari engines in those things?

 

Back when I was a tug boat engineer I use to take an oil sample every month and send it out to be analyzed. It looked as dark as tar but the report came back clean for well over a year. For the price of changing the oil in a car it is well worth it to change at the recommended intervals, it's just good inexpensive maintenance.

 

If you have to add a quart every 1K miles, you could throw a new filter on every 2K miles and do a complete oil change every 10K. Does this math work out well?

 

Wow what a genius. Oil doesn't wear out? Well if his oil is magic, I hope his bearings and rings are too.

 

Oil loses its ability to protect your metal on metal contacts over time...increasing the wear on your engine. Oil also becomes acidic over time, and to get rid of that acid you've got to change your oil completely, rather than add a gallon of fresh water to 5 gallons of dirty bath water each day for 5 days. All of this is more pronounced with higher temperature and high engine rpm combinations.

Your guy is in the opposite position. Diesel trucks can run using aftermarket oil filtration systems that pretty well eliminate the need for ever changing their oil, for instance, but that would be highly inappropriate for a race-type gas engine.

For Ferraris, run a great oil that will protect your engine at high temps and high rpms (I like Red Line, others have different favorites). Use a non-Fram filter (never, ever use Fram or MoPar filters). Put a magnet on the base of the outside of your oil filter. Change every 3,000 miles or after one track day.

 

Maybe not, but his deliveries would be quicker.

 

IMHO if you're using Redline and changing it every 3k miles you're wasting your money. But that's just MHO.

 

You're probably right, but...

 

Hey, it may work for him, but I think you could find just as many examples where it does not work....

http://www.justracing.com/bmw/viewtopic.php?t=21

 

Good for him. If I'm going to the trouble of changing the filter and draing a cup of oil to "anylze" I may as well drain the oil and change it

 

The only way you could keep your oil in your motor for any extended period of time would be to change the filters more often and also to do a oil sample and have it checked ever X amount of hours.

On my aircraft we did oil samples every 30 flight hours they were tested for alot of different metals and if it came back good we did nothing if it came back with a problem we changed the oil and flushed the system.

Its just easier to change your oil and filter like the manufature says to why risk your engine?


its a different animal and like you said he anylizes the oil samples! thats not free if done "correctly"


johnny

 

There are some good reasons why your freind gets away with this, ie.

Big diesels have a RPM max of around 2,500RPM.

Diesels run very cold compared to high perforamnce petrol.

Diesel fuel is a very good lubricant by itself.

But I don't see what does this prove for a Ferrari ?

 

Also don't forget that big fleet diesels are normaly started only once per day, then left idling at stops. Saves a whole lot of wear & tear with the reduced number of engine starts/stops.

 

I kind of enjoy changing the oil in my cars. Its mildly theraputic.

 

me too

 

No he is not lying to you.

The recommended oil change intervals on industrial vehicles with modern engines, oils and filters is anything from 50,000 miles for the smaller ones to 80,000 miles or more for the bigger ones.

We (IVECO) have just run one with a customer for well over 200,000 miles under very arduous conditions, without oil change or filter changes. The oil was monitored regularly but basically we stopped because it was going on for way too long. The engine was brought back and put on the testbed where it fulfilled all its original spec for power and exhaust emissions. It was then dismantled and there was no abnormal wear at all.

Our conclusions are that modern engines, oils and filters are good and that if your combustion is in order then even the recommended change intervals are probably on the cautious side.

There are a lot of scare-mongers out there claiming it is necessary to change your oil far too frequently (when you can see it on the dipstick for example). If it makes you feel good then fine, but it is not fair to mislead others.

I feel much better after that, thanks

Richard