Reasons to go 10,000 miles on Oil?

[HondaHawkGT]

I don't see why you can't do 10k oil changes with a high quality synthetic. You might want to pull an oil sample once in a while to make sure things are going OK. Fuel dilution can be an issue and that can kill any oil. Never hurts to keep an eye on things. I found an issue with my daughters Cruze through a UOA. Took it to the dealer and they found the pcv tube cracked and a valve in the plastic intake was stuck. All covered under warranty. So that UOA paid for itself.

i wash my jeans like twice a year ( I live in florida I don't think I wear them twice a year haha)

That's why some guys should use the engine hour meter instead of the odometer to judge when they should change their oil. Others should take note of how often they make short trips. A winter long period of short trips will ruin even excellent oils such as Amsoil Signature Series. That's why it's worth getting an oil analysis to see how your driving habits affect your engine oil life.

[fondupot]

I am gonna go by the engine Oil Life monitor. Last time I changed my oil it read 5% or something and that was a 6,800 mile interval. I could probably go to 7500 if I really wanted. It was about 6 months and it was time to change the oil.

[diyer2]

Lots of opinions.

This is a personal choice, same as what oil and filter to use.

Change intervals, total miles put on a vehicle, brands, oil tests, every aspect has been covered IMO.

All the info on here and not one engine failure that I remember tells me there is no wrong way.

[BigBadSierra]

I will run my full synthetic oil close to the 10,000 mile mark when I'm using it more like a car.

 

I do change it out more like I did last weekend it was down to 30% as camping season is about to begin and the camper is coming out next weekend.

 

I change it more often when I'm towing through out the summer..

[Badass69]

15000 miles at the longest or whenever I feel like it below that. I have analyzed enough oil samples over time to know that at that mileage there is nothing wrong with my oil. I don't have fuel dilution or high nitrates in my 2015's 6.2 so like my previous trucks I can run it for a long time and not have issues. But for those that like throwing oil away..... go nuts lol.

[mookdoc6]

Nice 1994 Vmax! That is what I am talking about! I don't even think I will do a sample when I see guys like you who already have done samples and more miles. It's just a waste of time and money in my Book buy a top line filter and run it!

[redwngr]

Until the warranty is over, I would follow the Oil Life Monitor and carefully document every change. After the warranty, stretch it out as much as you want. These trucks hold a lot of oil. They increased the sump from 6 quarts to 8 quarts with the new DI V8's, but the oil change interval stayed the same.

 

Does that mean that DI engines are harder on oil?

 

Edit: Well, after a little research, yes it does. The GDI process creates soot that gets in the oil. Soot, is of course, not a good thing as it thickens the oil and increases wear. GM must have decided to increase the oil volume to dilute the soot so they could maintain the same service interval.

Do you know for sure that the programming of the OLM hasn't been changed for the new motors or is this just a guess?

[twoheeldrive]

Do you know for sure that the programming of the OLM hasn't been changed for the new motors or is this just a guess?

Purely a guess on my part. I would assume that the OLM has been updated to reflect the changes in engine characteristics and oil volume, but only a GM engineer knows for sure.

 

My last truck, a 2010 5.3L, had the 'change oil soon' on the OLM consistently around 7500 miles. I haven't hit the 'change oil' point on this truck yet as I only have 4500 miles on the oil. The OLM says I have 40% oil life remaining, so it seems about the same, but won't know for sure until the OLM says to change the oil.

 

I'm sure someone else can weigh in that has cycled through the OLM several times to see when the change oil soon' message comes on.

[Z45]

fyi

 

 

 

Condition/Concern

 

Since 2010 all GM vehicles have been equipped with the oil life monitor (OLM) system

The monitor calculates the percent of oil life remaining, based on 3 pathways

 

The OLM starts its calculation for all pathways after the first 50 miles to account for marshalling and time before sale. Subsequently, calculations begin immediately after each reset.

 

Recommendation/Instructions

 

Oil Life Monitor Calculation Pathways:

1. Engine revolutions- Oil life starts with a fixed number of revolutions and will decrease with each revolution. Cold / hot coolant temp readings have multipliers that reduce engine revolutions pathway quicker depending on how far from the normal oil temperature the vehicle is operating.

Note: If engine coolant temp gets above 260F, engine overheat condition, the oil life will go to 0%.

2. Mileage from last reset – Starting with MY 2013, the OLM is capped at 7500 miles for all GM powertrains except the Volt. In perfect conditions a vehicle would reach 7500 miles from the last reset and the oil life left would be 0%.

3. Time- This pathway is a liner function, a fixed decrease in oil life for a given time after the oil life is reset. The oil life will drop to 0% after 1 year regardless of the amount of engine revolutions or how many miles since the reset.

Note: The Volt uses a 2 year timer instead of 1 year. It also uses the engine revolution counter. It does not use the mileage pathway to count down.

[mookdoc6]

Thanks Bud! I was just about to chime in and say.....Now way GM changed anything other than adding 2qts to the pan to dilute the GDI crap a little better

[JRL1164]

I've always used full synthetic but at the manufacturers recommendations. It gives me a warm fuzzy.