- Thread starter cool hand
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Janicholson
Well-known Member
With modern Quality Multi wt. oil in them, 5000 miles with filter is reasonable (opinion) Jim
Billy Shafer
Well-known Member
I don't believe in that three months cr!p.Unless you are in a very dusty part of the country.
I had a new coustomer that was told every three months. I showed him that was every six hours. Under normal use. No need to change oil that fast. Once a year was plenty.
I had a new coustomer that was told every three months. I showed him that was every six hours. Under normal use. No need to change oil that fast. Once a year was plenty.
Russ from MN
Well-known Member
- Location
- Bemidji MN
I don't pay any attention to the calendar when it comes to oil changes, mostly miles and driving conditions. One exception might be if a piece of equipment is going into storage, might be a good idea to change oil and run it a little to clean up the internal parts.
BarnyardEngineering
Well-known Member
- Location
- Rochester, NY
Your information is extremely dated. Manufacturers have not recommended 3 month oil changes since the 1980's as far as I know.
If you are not changing the oil in something from that era or earlier, then follow the CURRENT manufacturer's recommendations, or do whatever.
I have a truck that only gets an oil change every 2 years because I barely put 1500 miles on it in a year. The oil change recommendation for this truck is 6000 miles so I'm changing it at least twice as often as recommended. Using Mobil 1 full synthetic.
If you are not changing the oil in something from that era or earlier, then follow the CURRENT manufacturer's recommendations, or do whatever.
I have a truck that only gets an oil change every 2 years because I barely put 1500 miles on it in a year. The oil change recommendation for this truck is 6000 miles so I'm changing it at least twice as often as recommended. Using Mobil 1 full synthetic.
When we purchased a vehicle last month, the manager of the car lot stated that the newer engines have some high tech. internal components that need clean oil. He said that the government has pressured the oil companies and car manufacturers to increase the oil change intervals. So it is as the old Fram commercial stated, Pay me now or pay me later. He also said to buy the best filter instead of the cheapest. If you asked at a repair shop, they could tell you what they have seen, but you don't know how the owner cared for his vehicle either. So if you buy a car and run it for a long period of time, change often. If you buy old cars and run them til they die, maybe not so often. Either way, you are going to get conflicting info.
farmallboy15
Member
I'd be interested to hear what piece of equipment requires three month max oil change intervals. Most will state a mileage (i.e. 6,000mi) or one year, which ever is less. Besides the commuter car, most of my stuff falls in the one year category. Super low use / low value stuff gets extended to maybe 2 or 3 years... The reason for 1 year max is to mitigate the accumulation of condensation in the oil.
setting up an engine with moisture in it could combine to form acids and also some rust.
Any modern oil worth its weight, comes with a very high base additive in that will neutralize acids for up to 10,000 miles or more. So acids are no longer a problem as the oil is designed to handle them.
New engines keep the oils extremely clean for much longer. Only reason to change the oil that often is to make the oil change guys rich...
Yes modern engines require a better oil.. but better oil is sold everywhere. If you buy the oil the meets or exceeds the manufacturers specs, your good for an easy 7500 miles. Mobil one says you can go much further than that.
I would recommend the better thing to do is to start up the engine and run it up to normal temp periodically as a far far better thing to do if you dont drive it often. Trying to drive it down to the store once a month is far better than changing the oil every day.
Yeah, I know a salesman who has never read the owners manual, and didnt make it out of high school,, told you the factory engineers dont know squat.
john in la
Well-known Member
The only people that recommend oil changes every 3 months or 3000 miles comes from people that sell oil changes.
Manufactures recommend every 5000 to 7000 miles with some as high as 10,000 miles.
All you need to do is read the owners manual.
The 3 months come from the average driver drives 1000 miles per month.
Makes it easy for people to keep track of.
Manufactures recommend every 5000 to 7000 miles with some as high as 10,000 miles.
All you need to do is read the owners manual.
The 3 months come from the average driver drives 1000 miles per month.
Makes it easy for people to keep track of.
DoubleO7
Well-known Member
- Location
- Crystal River, FL
Nobody here knows if you have a chebby or a Ferrari, but you sure got a lot of choices to chose from.
What does your vehicle owners manual have to say about it?
On my ‘15 Silverado and Jo’s ‘18 Colorado I go by the computer in the truck. On her ‘90 Miata that she drives only in the summer it get an oil change at the end of the season. My ‘95 FLHT gets a change every 2500 miles since I still use conventional oil. Tractors get yearly changes no matter how many hours I put on them. Just my method.
Hockeygoon
Member
10,000 miles? What manufacturer advises oil changes at 10,000 miles? I know a lot of manufacturers that tried to go 5000 miles and figured out it didn't work. The
Variable valve timing in most modern engines requires clean oil to work properly - I would never go past 4000 miles on an engine with variable valve timing. The average
oil change costs me about $20 to $25 or about 1/2 a cent a mile if changed at 4000 miles. That is extremely cheap compared to the operating costs of a car per mile. I
don't see anyone getting rich off me at 1/2 a cent per mile.
Variable valve timing in most modern engines requires clean oil to work properly - I would never go past 4000 miles on an engine with variable valve timing. The average
oil change costs me about $20 to $25 or about 1/2 a cent a mile if changed at 4000 miles. That is extremely cheap compared to the operating costs of a car per mile. I
don't see anyone getting rich off me at 1/2 a cent per mile.
jd man wis
Member
Now days with the good oil 3000 to 5000 is good. Alot of time the miles are low but you go by how maNY hours on the oil.
Billy Shafer
Well-known Member
How many remember the toilet paper oil filter. By Purolator. One of my uncles had one on his truck. He never changed the oil just the filter.
I have changed my oil at 5000 per the dealer rec. I have driven everyone of my last several vehicles past 200,000, drove an escort to 276k and never touched the motor other than a water pump, have only gotten newer vehicles cause I wanted one not wore out. My current work pickup has 140k , good pickup has 180k, my daily driver work car 232k, my wife's car 135k. all change at 5k.
Russ from MN
Well-known Member
- Location
- Bemidji MN
I just got a 5 quart jug of Mobil 1 today, it says it's good up to 10,000 miles, and they're selling oil! I run ours about 6 or a little more, the vehicle manufacturers recommends 6,000.
Pete in MD
Well-known Member
- Location
- Central Maryland
My '09 Ford Flex manual calls for oil changes at 7,500 mile intervals and 5W-20 oil.
I follow this schedule and use Mobil-1 full synthetic and NAPA Gold filters. For me 7,500 miles is about 8 months. 140,00 miles and no engine problems.
I follow this schedule and use Mobil-1 full synthetic and NAPA Gold filters. For me 7,500 miles is about 8 months. 140,00 miles and no engine problems.
Hockeygoon
Member
What car manufacturer is telling you to wait 10,000 miles between oil changes?
Mobile One is good oil but they aren't warrantying the engine in your car.
Mobile One is good oil but they aren't warrantying the engine in your car.
A lot of OEM's or vehicles are in 7k-10k range, a few are 12k-15k miles. The longer duration oil changes need a synthetic oil or at least a synthetic blend. I would stick to 5k or less if using conventional oil or at least yearly for all the above. The month part of intervals is pretty much a thing of the past, most specify a particular mileage or yearly, whichever occurs first.
A few exceptions might be some high performance, turbo, or diesel engines, these sometimes have shorter intervals along with extreme driving conditions. City driving, short trips and a lot of stop and go miles usually falls under extreme driving conditions too.
A few exceptions might be some high performance, turbo, or diesel engines, these sometimes have shorter intervals along with extreme driving conditions. City driving, short trips and a lot of stop and go miles usually falls under extreme driving conditions too.
My 2011 Renault diesel car goes by the computer: 30000km or 18645 miles.
This rating gives premature wear of the turbo around 150000 miles.
I change oil every 12500 miles to be conservative.
On my 1992 Mercedes 2. 5 diesel, I use premium oil and change every 15000 miles. That car has 250000 miles and no issues.
John M
Well-known Member
- Location
- Nunyafn business
Of my 5 cars here, at the moment, (Had 6, one was totaled) my truck, 2013 Silverado, gets it at 5000, our Buick 2012 Enclave, the same, wifes work car, 16 Malibu, when the OLM reached 15% and for her that can be around 6000 miles, (She travels), oldest boys truck, 03 Ranger, 5000, my 2014 Mustang gets it once a year, sometimes 1000 miles, sometime 2000. Youngest boys Challenger only had 2 oil changes befoe it was totaled, both around the 5000 mile mark.
M-MAN
Well-known Member
- Location
- Bostic, NC
Evidently a lot of folks don't read their owners manual or they would know where this idea came from. It's the "severe duty " schedule. Police, taxi, and other severe duty vehicles where it is cranked in the morning and shut down at the end of the day. Yes those vehicles need it but yours doesn't.
showcrop
Well-known Member
M-MAN, the manufacturers consider two cold starts daily as in a short commute situation much more severe duty than running all day, except where the all day running includes a lot of idling. Heavy trucks that run 20 hours or more a day run the most miles between major overhauls.
Stephen Newell
Well-known Member
If you ever see the inside of an engine that needs an overhaul and see the sludge and the stuck lifters you could change the oil a lot. Oil is cheap compared to an engine, I change the oil on mine the first of every month.
Russ from MN
Well-known Member
- Location
- Bemidji MN
A toilet paper filter was one of the dumbest ideas ever! Toilet paper is designed to break down! I bet most of them bypassed all the oil after the first 10 minutes!
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