First Oil Change. Which is most important, Time or Mileage?
 

Bought my FR-S mid March. I am confident it had been at the dealership since December. I now have 3000 miles on it (750 miles/month). Should I still hold to that 7500 mile first oil change or 6 month change? Thanks for any insight.

Oh, I this case, I'd suggest you go with the mileage figure. The oil just sitting in a new car doesn't really "age"...... not so much at least.

(or 6 months after it had been put into service ...... whichever comes first)


humfrz

It isn't an either or option. Whichever ones comes up first is when you have to do it. Looks like your months will be up before your milage so do it then to maintain warremty.

I am curious about this too since I am a similar situation.

I had 3900 on mine when I got it on 4/15 and on 12/15, I had 7000 or only 2000 miles more, so I got the 1st one a bit early just to make sure it would be every year. I will only put roughly 4000 a year on the car and plan on doing the oil every year so I don't know where that put me with warranty but I assume they don't think I'm coming in every 6 months and only 2000 miles later to do a change.

Some people do the first change early. I only did mine a little early as far as mileage since they gave me the first couple changes free. I always have used synthetic and changed at 3500 miles in my cars even if it wasn't needed. I think this time around and with the miles I put every 4000 and once a year is enough.

Tcoat, is that a warranty killer for going past the 6 months until it hit 7k? My dealer didn't mention anything and seemed like it was ok.

The requirement is time or milage whichever comes first. The dealer could deny you warranty coverage if you didn't drive it at all and went one day over the 6 months. Timed oil changes are ludicrous in this day and age since synthetics don't break down over time but that unfortunately would not win you the argument if denied. With my milage I have to get my oil changed about every two months just to maintain warranty. The stuff looks as good coming out as it did going in but I still have to change it. If I changed it as often as you I would have to do that t monthly.

I don't know how anyone could possibly get 7K out of an oil change. I pushed my last fill with Amsoil signature series for 4K before I could no longer stand the noise/feel.

I get about 3K using Mobile-1.

I thought the car (engine) seemed to be a tad bit quieter and less "shaky" when idle after I changed the oil over the weekend.

Really thought it was in my head.. and butt lol

Nope. That's real. Sounds/feels the same when it's getting low. A half quart below full is too much for me to handle. Not just this engine. All wet sumps pretty much respond the same way.

The extra vibration doesn't necessarily mean anything bad but it just bugs me knowing the cause.

So if I got my first oil change at 8 months after I bought it and mileage was 7000 and now I am at 8900 miles(1900 miles since the last change) and it is 7 months now since then, I should "find" my two receipts with the oil and filter purchase? At 360 miles per month, it seems I need to get some receipts in hand in case these bozos try to deny a claim.

Yep but at 360 miles a month the odds of having a claim go way down anyway.

I push mine to the last mile and ant say I ever noticed any difference. Hell, with the synthetics you should be able to go 20k plus without a change.

Dunno what to say. I don't need a UOA to tell me when to change it. The difference is dramatic.

The engine feels hilariously smoother even after 4500 miles and an oil change

I give up ...... what is a "UOA" ....... ?????? :confused0068:


humfrz