Oil consumption results

[tigerclaws1318]

I just got back from the dealer from my first oil consumption test result and on the repair order it said no fault found. Oil level drop 5MM within specification. Is that really considered normal or is the dealer bs-ing?

[maxnix]

And that is what quantity over how many miles?

[tigerclaws1318]

And that is what quantity over how many miles?

First 1000 miles.

[GJEMD]

Because of the loosely sprung rings for power, all M45s will use oil if pushed.With normal use these engines will not stay topped out but also do not dropped to levels that effect the oil pressure. If you demand the oil level stays at the top mark you will possibly have spurious oil consumption. Many off these engines blow minor smoke on cold starts that also appears to be of little consequence. Try enjoying the car and enough with obsession on oil

[szh]

If you use 1qt or more every 1000 miles, then I'd be concerned. And Infiniti will replace the engine if pushed a bit.

On these M45 engines, some oil usage is normal. Mine appears to be very approximately 1/4 - 1/3 qt every 1750 miles.

Remember to measure on same level ground, cold engine (in the morning) to get consistent results.

Z

[tigerclaws1318]

I cant check the oil level due to the zip tie the dealer put on my dipstick lol

[M4T5]

If you use 1qt or more every 1000 miles, then I'd be concerned. And Infiniti will replace the engine if pushed a bit.

On these M45 engines, some oil usage is normal. Mine appears to be very approximately 1/4 - 1/3 qt every 1750 miles.

Remember to measure on same level ground, cold engine (in the morning) to get consistent results.

Z

your comment to even side with an Infiniti Tech or Engineer's decision/ call on this situation is really ridiculous.Oil usage between oil changes is uncalled for. All it comes down to is a poorly built engine. If it is normal, then why doesn't their 3.5L engine burn oil??? It should be burning oil as well, because your calling it normal. I would call using 1/2qt of oil between their 3,750mi oil change interval a little excessive, but that amount could be called normal due to break down.

You guys are totally missing the results of the 4.5L engine or any engine burning oil at these rates.The spark plugs WILL build up with excessive amounts of carbon. This of course will cause a decrease in the spark output that will lead to lack in performance and fuel economy. The valves, combustion chamber, exhaust ports, and cat converters will also start building up excessive amounts of carbon deposits due to burning these (x) number of amounts of oil between oil changes.

Guys.....this is NOT a normal situation to just let Infiniti get away with. There will be consequential results in due time if everyone allows oil consumption to be called normal.

Everyone is just wanting to believe that the Infiniti engineers have all the right answers. They are obviously siding with a corporate decision on this.The 4.5L engine has a defect and Infiniti's Corporate division is only trying to look out for the companies best interest, NOT the consumers! It's a no brainer! I urge you guys who are putting Infiniti on a pedestal to open your eyes and do some research on the results of an engine burning excessive amounts of oil. Better yet, to the ones that have excessive oil burning engines, pull out a few spark plugs and inspect them. That's just the start of your problems.......

J

[GJEMD]

[QUOTE=M4T5]

your comment to even side with an Infiniti Tech or Engineer's decision/ call on this situation is really ridiculous.Oil usage between oil changes is uncalled for. All it comes down to is a poorly built engine. If it is normal, then why doesn't their 3.5L engine burn oil??? It should be burning oil as well, because your calling it normal. I would call using 1/2qt of oil between their 3,750mi oil change interval a little excessive, but that amount could be called normal due to break down.

infiniti has replaced many 3.5L in the coupe. You are simply mistaken about 1/2 quart use/3750 miles. I have owned many high performance cars BMW, Corvette, Ferrari and all have had similar oil consumption 1 quart +/OCI when driven as intended. Lastly most owners have replaced their plugs at 60 -100,000 miles with no reports of premature failure . I cant remember a reportof engine failure, blown or seized. Most of these M45s are off lease 2nd owner cars. This speaks to the abuse potential of these cars in spite of the issues you speak.

[maxnix]

If it is normal, then why doesn't their 3.5L engine burn oil??? It should be burning oil as well, because your calling it normal.

A lot of them do, compared to the VQ30DE which is built with tighter rings.

The VK series follows the VQ35DE formula for looser rings and smaller bearing surfaces for less friction, more power and less longevity. Why there are so many changes in the new 3.7L engines.

Many of us driving well maintained VH series with150K -200K miles on them don't burn half a quart in 5K miles. Different philosophies guided each design.

[M4T5]

your comment to even side with an Infiniti Tech or Engineer's decision/ call on this situation is really ridiculous.Oil usage between oil changes is uncalled for. All it comes down to is a poorly built engine. If it is normal, then why doesn't their 3.5L engine burn oil??? It should be burning oil as well, because your calling it normal. I would call using 1/2qt of oil between their 3,750mi oil change interval a little excessive, but that amount could be called normal due to break down.

infiniti has replaced many 3.5L in the coupe. You are simply mistaken about 1/2 quart use/3750 miles. I have owned many high performance cars BMW, Corvette, Ferrari and all have had similar oil consumption 1 quart +/OCI when driven as intended. Lastly most owners have replaced their plugs at 60 -100,000 miles with no reports of premature failure . I cant remember a reportof engine failure, blown or seized. Most of these M45s are off lease 2nd owner cars. This speaks to the abuse potential of these cars in spite of the issues you speak.

Maybe you missed it..... anyways, most that are reporting the problem have an engine that is burning 3/4 to 1+ qts every 1000 miles, not just 1/2 to 1 quart between the 3,750mi oil change interval. So that is normal as well??? Infiniti states anything less than 1qt per 1,000mi is normal! Now that's One way or another, the engines are built with internal flaws. For these vehicles that cost this much, they should at minimum had the engine's built correctly before placing them into production and selling them to the public. Guess what, they are ignoring the problem for the time being until they get the redesigned engines and cars out.Sorry if you disagree! You are just as wrong as Infiniti if you think it is normal....

J

[GJEMD]

I won't argue you may have bad M, but the facts are the vast majority have given bullet proof reliability. The VK engine is apparently exquisitely sensitive to how it is initially driven. Given most are off lease it can be a CRAP shoot. I for one have owned an 2004 since new. It has been subjected to a lot of sustained 3000 rpm use over the road. It has been thrown around on occasion but its NOT a race car as so many of you desire. Its a luxury car that has loads of power that adds safety on 2 lane passing and negotiating traffic. The 1000 miles/qt is an industry standard. VW are notorious oil consumers after 30,000 miles. The Germans use 800 miles/qt. The standard may be wrong but lacking drive ability issues the factory does as it pleases. If you want power and no oil use get a late 60's cast iron block muscle car.

[M4T5]

I've owned, Ford Mustangs (93 to 2004 models), Ford trucks (78 to 1999 models), Chevy Camaro's (92 to 1998), Chevy Trucks (2000 to 2005 models), Chevy Impala (01 model), Toyota Camry (2002). None of which used oil between oil change intervals. Luxury cars?? Maybe not. More powerful?? Yes! I have owned 2 mustangs, one Camoro, 2 Ford trucks, and one Chevy SS Silverado that had more power than the M45. None of which consumed oil between my 4,000mi oil change intervals.I did have a few that began consuming oil, but not until they had around 120,000+ miles on them. Oh yeah, forgot all about the old ugly thing. I own a 97' Jeep Grand Cherokee (4.0L) that has 185,000 original miles on the engine, transmission, and rear end, and uses no oil between it's 7,000mi oil change intervals. I only use synthetic blend oil in it. It's our park it wherever and load up whatever in it without thinking twice kind of vehicle. I've always owned a third wheel vehicle that's usually a little embarrassing to be seen driving around in. So.... are foreign cars far superior?? That's a tuff one to answer to be honest.Sure a lot of foreign cars looked better and were styled inside and out somewhat better, but longevity should be at the top of the list. Not just how much more luxury a car is over another.

Sorry man, but there are a lot of domestic vehicles that we build here in the US, that do not consume oil between normal oil change intervals. There are also a lot of domestic made vehicles that produce a lot more power than the M45 as well. We are still accomplishing all of this with late model vehicles that do not have to resort back all the way to the Muscle car era's.

J
Modified by M4T5 at 6:59 PM 5/11/2009