Oil change frequency with Synthetic oil

   / Oil change frequency with Synthetic oil #31  
<snip> I plan on servicing it myself yearly even though I realize that in all likely hood I am wasting oil. Just can't wrap my head around not servicing any vehicle at least once a year.
Servicing and changing the oil can be 2 different things. You need to do Planned Maintenance routinely depending on the equipment. I try to grease every 8 to 10 hours of run time on my tractors. Do a walk around before I start. Passenger vehicle tires now need to be replaced about every 7 years for safety, even if they have plenty of tread. But the manual produced in 1994 for old time Dino oil does not reflect present day reality so I change my oil based on UOA when needed, not when the manual says to.

The oil is changed at "a cost of about $100"....every 4 years
And ..... the additional cost of how many oil analysis over 4 years is ....????
Blackstone sells their oil analysis kits for $28 each. Over 4 years, testing for each year would total $112, plus the $100 cost for the oil change at the end of 4 years.
Or get 1 UOA at 3 years, 11 months and see if it needs to be changed. You might be able to go 12 years.
It's your money, you can choose how to spend it.
 
   / Oil change frequency with Synthetic oil #32  
Many manufacturers specify a number of hours or a time limit (typically one year). It's a tossup which one I'll hit first next year.
 
   / Oil change frequency with Synthetic oil #33  
I get a kick out of reading these threads. Everyone explaining why there way is best :thumbsup:

I worked at a family owned oil change shop many years ago and I've seen some interesting things come through the door. Even had a retired guy come in and get his oil changed every month, regardless of miles on the vehicle which was usually less than 500 miles per change. You couldn't convince him otherwise and he was willing to pay the price so why would we argue with him. He said its the only way to keep these non-leaded gasoline things running!

With cars or tractors, how can you trust anything anyone says? They don't have any vested interest in your machine and if you take someone's advice and it goes horribly wrong, who is to blame? The oil change shops just want your business, the oil companies want you to buy more oil.... etc... etc.... Frantz oil filter, endless supply of clean oil, just change your toilet paper! :laughing:

Can you trust the manufacturer? Out of anyone, they should be the ones to trust right? They made the machine and they have a vested interest in it lasting for you (bad publicity is bad for business). They have no vested interest in the oil company's right? However, they do have vested interest in consumables and dealer services.

But then you see things like Porsche and their 20k mile oil change? Or other manufactures with lifetime sealed transmissions that end up failing after 100k miles. Then there is the 15k non-synthetic oil change
intervals on the 6.7l Cummins diesel :shocked: but yet the dealer told me when pushing FCA's $2000 lifetime lube package, it was every 5k?? The dealer is representing the manufacture, they should know the truth right? But wait... that nasty dirty black diesel oil can go 15k miles? how can that be... oil experts say, oil and additives turn dark with heat cycles and over time collect non-engine wearing soot which is 1 micron in size and unable to be captured by the filter... unless you have something like the Frantz oil filter kit, that thing captures everything up to 1/2 micron, but wait... AMSoil says the additives are 1 micron in size and a filter anything less than 2 microns will remove them from the oil.... hmmm. Does anyone speak the truth?

So if you can't trust those guys, you have to be a chemist to actually know what goes on with your oil, or do you trust the independent engine oil analysis. Can you trust them? They are in it for your hard earned buck too and they are competing with the oil/lube industry and their recommended change intervals. What if you had your first oil analysis done and it indicated to change the oil at manufactures recommended intervals, would you use them again? Maybe you should get one done on day 1 and then again at day X when you think your oil is needing a change and compare the two.
Don't get me wrong, not saying these labs are crooks, I actually do trust a local lab and we use them on our large mining equipment. Because who wants to change out gallons of oil every week?

There is a local auto dealer here that offers the first owner a lifetime warranty on a purchase from them, as long as you bring it to them for service, oh and one more stipulations.... You must have it serviced by them every 3k miles or 3 months even though manufacture recommends longer intervals and must use synthetic. At a minimum you are going to be paying $500 a year but most people put many more miles on their vehicles than the minimum.

Just saying... who can you trust?
 
   / Oil change frequency with Synthetic oil #35  
I'm still confused about the whole time thing... Oil must go rancid like cooking oil ... or does it?? :confused3: (joking) cant trust anything you read on that because everyone say contradicting things.

I understand water ingress, chemical contamination and oxidation... but come on... Here in the frozen north, some vehicles will go 6 months with out being touched
 
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   / Oil change frequency with Synthetic oil #36  
I think oil change intervals are one of the most controversial parts of maintenance. There are people who still change their oil every 3000 miles even though it is not due per the mfg. info. Oil is good until it is contaminated. Nothing magical happens at 3000 miles that makes it occur. You really only have two good choices. Follow the mfg. guidelines or get it analyzed. Anything else is really just a guess. "I changed my oil every 3000 miles and have never had a engine failure" means little more than someone who never changes oil and has never lost an engine. One persons good or bad luck does not make a very reliable statistic.
 
   / Oil change frequency with Synthetic oil #37  
. "I changed my oil every 3000 miles and have never had a engine failure" means little more than someone who never changes oil and has never lost an engine. One persons good or bad luck does not make a very reliable statistic.

Had one man tell me he never greased his front end on his 1980? station wagon and it has over 150k miles on it. And it still runs like a top.
 

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