Last post on Sep 08, 2010 at 5:03 PM
You are in the Infiniti G35
What is this discussion about?
Infiniti G35, Sedan
#457 of 486 Re: Engine break-in.. [scottm123]
Oct 15, 2007 (9:07 am)
I plan on following the break-in schedule with my new G35, of course, but I am curious to know if anyone has ever heard about any engine issues that were attributed to not following the break-in? It might be impossible to tell, or even know. If you had a major issue down the road (say 80k or 90k miles) and you didn't follow the break-in, how would anyone know that was the root cause? I wonder what percent of people even follow the break-in period?
Again, I'm just curious and plan to follow the break-in period, which incidentally is twice as long as my wife's new '08 v6 Accord
#458 of 486 Re: Engine break-in.. [shov8]
Oct 15, 2007 (10:35 am)
I know what you're saying and you're exactly right.
Not folloing the break-in schedule will do little in the short term, and some die hards swear by driving it hard in the beginning, but long term is where this comes into play.
People with engine trouble 75-90K down the road, I always wonder if they broke the car in correctly.
Point is, even a mechanic wouldn't know if inproper break-in was the cause.
If you're like me and plan on long term ownership, then following the suggestion of proper break-in is the only way to go.
But at 1,200... all hell breaks loose!
#459 of 486 Infiniti owners manual says no synthetic oil-- why?
Oct 15, 2007 (5:08 pm)
The Infiniti owner's manual and car service departments insist that no synthetic oils are to be used in their engines (for G35). Does anyone ACTUALLY KNOW (not theoretically) exactly why? What negative effects would the synthetics have on the G35 engine?
#460 of 486 Re: Engine break-in.. [shov8]
Oct 16, 2007 (2:56 am)
It would be nice if there was a way to tell how a vehicle had been driving during the break-in period; after all, how would we know that someone hadn't already used the vehicle we purchased on a test drive and tested it's boundaries before we ever stepped foot in it.
#461 of 486 Re: Engine break-in.. [michael2003]
Oct 16, 2007 (4:52 am)
Every G35 comes with a letter, usually in the glove box, stating what tests were done at the factory and how many miles it had on it when it left. (assuming the dealership prep guy doesn't throw it away)
When you buy your car, it should certainly have less than 20 miles on it.
The factory tests can be up to 10 miles, but are usually no more than 5 or 6.
The other few miles come from transferring the cars from transports and around the dealer lots.
My car came with 10.5 miles on it.
Common sense will tell you if the car has been test driven before you buy.
I don't know about other dealerships, but my test drive lasted almost 45 minutes and we drove that car EXTREMELY hard. I just followed the instructions of the salesman, and was amazed at the limits he allowed me to go to.
Fun test drive, but there's no way in heck I wanted to buy that one when we were done!
#462 of 486 Re: Infiniti owners manual says no synthetic oil-- why? [cimabeu]
Oct 16, 2007 (5:46 am)
I have an '04 Pathfinder, and it has the same wording in the manual. I work in aerospace, and my guess is that it's the materials they use in o-rings & seals. Synthetic oil (MIL-L-23699 & MIL-L-7808 in my world) MUST be used with appropriate o-rings, or they'll shrink & fail to seal correctly. Either way, I run dino oil in the PF, just like I did years ago in my 240Z that still had hone marks in the cylinders when I tore the engine down at 200K miles (all I really needed was stem seals, it turned out).
Just a theory, but in another board a few years ago I put this idea forward and someone came back to say that they had developed an oil leak a few months after starting to use synthetic oil.
In reality, synthetic oil is only really helpful above 250 deg F (oil temp) or below zero. Otherwise, in my opinion, it's a lot like filling your tires with nitrogen -- makes you feel good & makes more money for someone.
That said, I've been running Mobil 1 in my car for years & it has 123K miles on the engine.
#463 of 486 Re: Infiniti owners manual says no synthetic oil-- why? [cdnpinhead]
Oct 16, 2007 (2:41 pm)
By far the best answer I've read. In reality, I've been reading about the hype associated with synthetics, and after awhile it sounds like the proverbial "self fulfilling prohecy"- it's expensive, it has good reviews and therefore, it must be good (and so everyone imagines them to be superior b/c of the hype, cost and marketing). I've used Catrol GTX for decades and have gotten well over 300,000 miles on my Volvo engines (3 cars to date from the 80-90's). So, it seems that the issue is not oil type (synthetic vs. dino) but how one takes care of their car!
Again, thanks for solid feedback!
#464 of 486 Re: Engine break-in.. [scottm123]
Oct 16, 2007 (7:38 pm)
Hey! I just opened my glove box and found that note LOL. I hadn't opened the glove box since taking delivery
Anyways, I can't make out the first name of the "quality assurance engineer" who tested my car, but his last name is Honda. Kinda funny eh? My car had 5 miles from the factory according to the note. There was also a little brochure about the navi system, just showing the coverage area and lane guidance. My '08 has Map Version 8.0 software FYI.
Lastly, my experience during the test drive was exactly the same. I too was surprised at how much they let you do, even ask you to do, during the test drive. When the salesman was demoing the paddle shifter he said "take it to the redline - I want you to hit the rev limiter" or something very close to that He was showing that in DS mode the car will not shift for you. Man, some demo! And this on a car with like 25 miles on it. I was a good boy and did not hit the rev limiter but after the test drive I plopped my deposit down and said (to myself) "good thing I am not buying that car!"
#465 of 486 2005 g35x VSD/Slip
Oct 25, 2007 (8:42 am)
Today my dash lit up with VSD Off and Slip my whole ride into work, and the brake light flashed occasionally. The dealer says it is probably my front brakes - does this sound right?
Are there any known issues pertaining to what I am seeing or the front brakes in general?
I purchased the car from a dealer in August - it has 29k miles. Should brakes be something I am expecting about now?
Thanks for any posts!
#466 of 486 Re: 2005 g35x VSD/Slip [jadussel]
Oct 25, 2007 (10:42 am)
In an 05 G35x??? LOL
Are you kidding?!?