Changed from Mobil 1 0W-20 to Pennzoil Platinum 0W-20 a few weeks ago. Wish the Ultra was avail. in the 0W-20. Be careful not to fill any more than 4 qts with the OEM filter. Windage in the sump can cause drag on the crank if overfilled even a little, not much margin. I always fill 3.5 qts, start up and check for leaks, then top up to the mark. Noticed a significant MPG increase in both city and hwy driving. From 29 to 34 city, and 33 to 38 hwy on the MM. The real surprise was on a long trip this past weekend of about 400 miles each way, MM was showing 44.5 steady cruising at 75 mph, no cruise control (it's a Base AT). Plain 87 c-store gas all the time. On the return trip I got 230 miles with the gauge at the halfway mark! Only thing I have is a K&N flat filter in the stock airbox. Hand-calculated numbers showed 41 hwy, I wish the display was more accurate, have had it recalibrated at the dealer once, reset the fuel trims myself several times, but it still runs high.

 

Is that the older P.P. oil base or the new Platinum with the Pure Plus Technology ( natural gas ) ? We have the Pure Plus in the '11 FIT .

 

Anybody have the torque values for the wheel nuts and the engine oil drain bolt? I'm doing a service tomorrow, and for once in my life I may use a torque wrench.

 

Wheel lugs are 80ft/lb. Not sure on the bolt.

 

Thank you, jd.


Wow, I totally screwed up this post. I meant to start a new thread on torque specs, not to post in this one. My apologies to the OP.

 

Oil drain plug is 29 ft/lbs, oil filter itself is hand tight til it stops

 

Yes, it's the newer Pure Plus natural gas base. It seems any extended road trips are very good for MPG. My biggest gripe is not buying a Sport when I found this one. My right leg hates not having cruise! And I could use a more supple seat material. I'm only 175 lbs but my a** gets major sore on long drives (OK rant done). Mine's an '09 with AT currently at 66k mi. Only significant servicing I've ever had done was the LM spring recall/valve adj around 15k, AC recharge service 1x (they seem to undercharge them at the factory) that's pretty much it.

 

Your MEASURED gas mileage may have changed from 29 to 34 (17.2%) and 33 to 38 (15.1%), but I can guaranty you, it was not from the oil change you mentioned. Tire pressure variations, wind conditions, temperature, traffic, driving style, accuracy of gas pump, and accuracy of fill will make much more difference than substituting one oil with the same viscosity oil as another.

 

I don't see a reason not to try this oil in my next change. If MPG increases, well, there are certainly worse things that can happen!

 

I'm going to agree here. If that increase actually happened, something was wrong with the other oil...

 

The "After" improved gas mileage are more in line with what I'm already getting. Viscosity shouldn't make that much of a difference. I actually run only 5w-30 (winter) and 10w-30 oil in my car since it was new. My MPGs haven't suffered in any measureable way. I do, however, drive my car very conservatively too and that makes a difference.

 

Can anyone else corroborate this statement? Nothing against the OP. I'd just like a little more context on this.

As a rule, tolerances on production cars are pretty loose, especially on something like engine oil on a girly car like a subcompact. It's hard to fathom that an OEM would market a car with "even a little, not much margin"-type tolerances.

Cheers.

 

This happens when oil in the crankcase splashes on the crankshaft due to overfill on very rough driving. As well as creating friction, this can cause foaming and therefore poor lubrication. Exactly at what overfill point this happens, I do not know, but technically my 2009 takes 3.8 quarts including oil filter, so even 4 quarts is an overfill. The OP may be warning people who think that all cars take 5 quarts, not to put 5 in the Fit.