Oil change timing....3,700 or 5,000 miles??

[Mark_888]

Mark, the source you quoted makes the point that EGR is the source of some buildup. As a mechanical engineer I would debate the "soot" point though. The reason for GDI is that a higher compression ratio can be used and the charge can even be burned when leaner than normal, so if particles are being made, and I don't doubt you there it is more likely to be caused by EGR or crankcase venting. Some of our smog controls aren't totally logical. The original ppm requirements were set up so the biggest engines could pass smog. We are now requiring extreme measures to get minimal improvement. Again if your Genesis of any engine is turning the oil BLACK get your smog controls checked.
Bill

The article makes the point that GDI has pluses and minuses, and one of the minus is extra carbon buildup. It is commonly stated in many other sources that GDI puts extra demands on oil due to increased fuel dilution (more fuel getting into the oil) compared to fuel injection. Personally, I would only use a full synthetic with a GDI engine if I had one (I don't).

Many on this forum have noted that Genesis GDI tail pipes seem to vent more soot than non-GDI engines, and requires a bit more frequent cleaning in the rear bumper area.

 

[Andy-O]

Hi Ruissimo,
What did the dealer do for 7500 mile service. My car is at 7250 miles and coming up for that service. Besides oil change do they change air filter etc. Let me know. Thanks.

 

[Mark_888]

Hi Ruissimo,
What did the dealer do for 7500 mile service. My car is at 7250 miles and coming up for that service. Besides oil change do they change air filter etc. Let me know. Thanks.

You should check the owners manual for what needs to be serviced at particular mileage intervals, and order those services only (do NOT order a 7500 mile service or any service based on a mileage number). Otherwise you will be ripped off big time. Dealers can throw in anything they want into a XX,XXX mile service special, even if not required by the manufacturer, and a lot of times it includes inspections of stuff that they don't even do, or they would normally do for free.

 

[Philth]

Lots of reports of early model GDI engines having carbon build up so severe on the intake valves, that the cylinders lose compression.

 

[G-254906]

I think the type of driving one does should determine change intervals. If your driving consists mostly of short trips of less than 10 miles, then treat your car to "extreme" standards. It takes about 10 miles for oil to come up to 180+ degrees where any moisture in the crankcase can be evaporated into the breather system.
Trips longer than 10 miles, like a 20 mile daily commute, are much less wearing on a motor. Oil has a chance to fully warm, etc.
My wife's driving is on very short trips in town so I change her oil, no matter what the mileage, twice a year.

best answer

 

[shahhere]

Wow Old thread revival!

Honestly 3000 miles for most is a waste of your money and no point in getting into debates here.

I was putting about 7,000-10,000K a year in mixed driving of local (short trips) and highway miles (taking 250 mile trips often each way). I change mine around 7500 miles. I also had Blackstone testing and that indicated that the oil was ample good at that mileage and could have gone to 12k but at least change it 1 time a year. I dont drive a lot now with the Pandemic so I am down to less than 3,000 miles but still 1 year OCI.

I have gone through 3 High Mileage cars following the above OCI ranging from 130,000 to 190,000 before transmission, rust etc, wrecks caught up. Even my old 97' Nissan I as doing 7,000 OCI or annual changes.

As others have said that I've checked my oil at 2,000 miles and its Dark Black so cant go by that on this particular car. I have a Corolla and it will stay amberish until 4,000-5,000k miles.

PS. Anyone using 0W-20 in this car (2012 V6)?

Shahhere

 

[Shady_panda]

Wow Old thread revival!

Honestly 3000 miles for most is a waste of your money and no point in getting into debates here.

I was putting about 7,000-10,000K a year in mixed driving of local (short trips) and highway miles (taking 250 mile trips often each way). I change mine around 7500 miles. I also had Blackstone testing and that indicated that the oil was ample good at that mileage and could have gone to 12k but at least change it 1 time a year. I dont drive a lot now with the Pandemic so I am down to less than 3,000 miles but still 1 year OCI.

I have gone through 3 High Mileage cars following the above OCI ranging from 130,000 to 190,000 before transmission, rust etc, wrecks caught up. Even my old 97' Nissan I as doing 7,000 OCI or annual changes.

As others have said that I've checked my oil at 2,000 miles and its Dark Black so cant go by that on this particular car. I have a Corolla and it will stay amberish until 4,000-5,000k miles.

PS. Anyone using 0W-20 in this car (2012 V6)?

Shahhere

I checked mine yesterday and it was dark black too, I was getting worried! my last lexus at 6000 miles the oil is clear or near amber looking. I guess its collecting all the soot, which is good.