So i got my last oil change back in July around the 5th and the sticker they put on my window says i should change it on October 5th which is today. but I have not driven 3750 miles since my last oil change. I still have around 1,700 miles until i get to the 3750. Is it that important to change it at the 3 month period or should i wait until i drive the 3750? If i went 4 to 4 1/2 months on the same oil is it a problem?

 

my service guy said go by mileage. ihave the same problem where I only drive about 750 miles a month.

 

Mileage. Unless your car sits for long periods of time without being driven.

 

I think both are important.
Infiniti Ownership | Vehicle Maintenance Schedules | Infiniti USA

It say 3750 or 3 months. So if you were to follow what infiniti recommends, then you are up for oil change. .

 

so if i takes 4 to 4 1/2 months to reach the 3750 i will be fine?

 

Absolutely!

 

As long as you are changing it no less than every 7500 miles/6 months you are fine for warranty purposes. I wouldn't try the 7500 miles unless you were using a good synthetic/synthetic blend though.

Those stickers they put on your vehicle are a joke. Did they put the mileage at 3750 miles or 3000?

 

You know Infiniti have launched in Europe and UK G37's at least are being advertised with 15K service intervals. Service intervals of up to 20K are the norm in Europe. Can't help wondering if US consumers are being taken for a ride when manufacturers tell them they need an oil change every 3750 miles.

 

Very good point I have always thought about that. It keeps money moving I guess. Also it does not hurt the car so I still Change it every 5k

 

Those would be Kilometers not miles.

If you look at UOAs for the G37 Infiniti seems to be in the right area for their intervals. 3750 is about where regular oil is done and Syn Blends can make it to around 7500, depending upon which one it is.

 

6 months is about the longest you want to go. Water in the oil from condensation makes it acidic and then the acidic oil etches the metals inside the motor. Short drives that don't boil off all of the water make it worse. Cold weather creates more condensation too. 3 months is probably the rule for short drives in cold weather.

 

Yes. Yes we are.

Is there any chance that you would have an owner's manual for a Euro spec G37?

 

interesting ^. i actually run 5000 intervals, but i use redline 5w30. the first time i ran redline, i pushed one 7500 interval. haw!

 

wow an honest service guy. i bet some stealerships might say time since it would be money in their pocket faster

 

I am a little confused by some of the posts concerning frequency of oil changes. Here is what the maintenance manual says about the frequency of oil changes for the 2010 G37 sedan. Failure to follow this will void the warranty, so I don't really think this is a matter of opinion. Most of us drive under Schedule 1 conditions:

SCHEDULE 1 (more severe operating conditions), every 3,750 miles or 3 months,
whichever comes first.
Use Schedule 1 if you primarily operate your vehicle under any of these conditions:
• Repeated short trips of less than 5 miles in normal temperatures or less than 10 miles in freezing temperatures
• Stop-and-go traffic in hot weather or lowspeed driving for long distances
• Driving in dusty conditions or on rough, muddy, or salt-spread roads
• Towing a trailer, or using a camper or car-top carrier

SCHEDULE 2 (less severe operating conditions), every 7,500 miles or 6 months,
whichever comes first. Generally, Schedule 2 applies only to highway driving in temperate conditions.