New car sat on lot 9 months. 1st oil change when?

Status
Not open for further replies.
I usually change the oil at around 250 to 500 miles, on my 2006 Toyota let it go to 1600 miles it really may not matter. There are some posted UOAs on new cars some look good some not so good.
 
Originally Posted By: joflewbyu2
Originally Posted By: BKirk
I bought a 2009 Miata two weeks ago after it sat on the dealer lot 9 months. Mazda's recommended OCI is 6 months or 7,500 miles, whichever comes first. Was I due for an oil change the day I bought it? When should I do the first change? Thanks!
DON'T !! I have been in the auto industry for over 20 years and the oil has additives in it from the factory that most shelf oil won't unless it is beak in oil with LOTS of MOLY and ZDDP (ZINC). The manufacturer even put out a bulletin NOT to change oil before the 1st recommended mileage service interval. Here is another manufacturer opinion: "Your Honda engine was delivered with an oil that is specially formulated for new engines that have not yet developed their "natural" wear patterns and may contain minute particles from the manufacturing process. American Honda strongly recommends this special oil be left in the engine long enough for these wear patterns to develop, usually until the first maintenance interval specified in your Owner's Manual, based on your specific driving conditions."


News Flash...a Miata is NOT a Honda. Honda wants the assembly fluids in for at least 2-3k. No other car makers make the same claim as far as I know.
 
I was actually reciting Mazda as well which I saw documents back in 91-92 time frame. The most recalled document was on the RX-7 back then telling not use any synthetic oil in the rotary engine. BTW, Honda motor co. is the largest engine producer in the world today. And no, none of their current maintenance requirements are as short as 2-3k mi. Most Asian manufacturers were making the same recommendation when the cars were built in Japan. They do not have the same EPA regulations as the U.S. which affected different durability issues as well as reliability issue. Take the example of paint. In the U.S. there are very stringent regulations on paint which the Asian countries did not have. Hence the waterborne that are mandatory in the U.S. which affects the hardness against paint chipping. But back to the subject. i would definately leave in the original oil til 5k. It has assembly lube which has a ton of moly in it. I have seen many say Honda oil has tons of moly and zinc. That is false as it is SM rated and the high count of moly and zinc come from the assembly lube and additives in the initial fill.
 
Originally Posted By: Patman
Back in January 1996 I bought a brand new 1995 Trans Am and found out that it had actually been built in September 1994, so the oil in there was already a year and a half old. Because the car had been on the dealer's lot for so long, it also had quite a few test drive miles on it, over 200 actually. I had a free oil change owed to me by that dealer so I ended up getting them to do it within the first week of owning that car. I just didn't trust the condition of that oil, new cars on a lot often get started and moved a lot, and the oil never gets up to temperature.


Exactly. I've worked for a Chevy dealership in the past and know that the vehicles get moved around a lot, and many times get driven VERY hard by employees and test drivers on short trips about town.
 
Cam in worn-in in a < hour. Initial breakin is surely complete by 1000-1500 miles. Then there is the trailing breakin. Having high zddp inthe sump would be a no-no these day - never seen high P recently on a FF UOA. Show me (Ive seen high moly)
 
Kind of with you on that.
I like to dump the FF at 1K, and then run another 3K on conventional, and then switch to syn.
I did this with the last Honda we bought new (ten+ years ago), and the car has always had good power and low fuel consumption, with negligable oil consumption at its current ~120K.
I have no idea whether Honda used any special break-in oil back then.
I did the same with the Subaru we bought last year.
I don't think running the FF out to 1K would cause the OP any long-term problems.
 
Drive the snot out of it then change the oil at 60 miles then again at 1500. Change the filter at 1500 as well. From then on follow a normal oil change routine. I think XD 0W30 would work great in that application and climate.
 
I'm with JB, doesn't seem that popular around here but. I drive it like I stole it for break in. Always changed my oil at 500, 1000 and 3000 on every new car I've owned and never had an oil burner.
 
In March of 2002 i bought my brand new 2001 Mazda which sat on the lot for about 11 months. I changed my oil at 1000 miles (and it was hard for me to let it go that long).

84,000 miles later i still think i made the right choice.

My previous car was a 1989 VW Jetta that i bought brand new in '89. It wasn't on the dealers lot long at all, and had i think 21 miles on it. I changed the oil the first week. 225,000 hard driven, frequently red-lined (what can i say, i was young), 100% dino oil driven trouble free miles later, i still think i made the right choice.

Whatever oil you choose, i'm sure your Mazda engine will last a very long time. However the inexpensive Motorcraft oil is hard to beat for the price.

Good luck on the new Mazda!
 
My parents have always done the first oil change at 3,000 miles and neither of them had problems with oil related failures.
 
Originally Posted By: artificialist
My parents have always done the first oil change at 3,000 miles and neither of them had problems with oil related failures.


I know people who go 30,000 miles between changes and they don't have problems either.

Here we have a poster, joflewbyu2, with 20 years of auto experience (not shadetree experience) telling to keep that oil in. Yet people on this site are so anal about changing their oil, that they will disagree with an expert. Changing oil at 60 miles? This is just oil change hysteria...

Go ahead and change your oil; Dubai nees the money!
 
Last edited:
Ok so so changing the oil at 60 miles may help Dubai.
So are there any other deleterious effects ??

If so please explain.....

If you are wondering why I ask....

Realizing that all engines are not assembled exactly equally.

lets suppose that there are a lot of wear metals shed in the first 50 miles of operation on a few engines.

So other than helping prevent global financial crisis what harm is done by an early change out of the oil?

I have done this on each new car and on each hand assembled engine ever operated by me.

All engines (with one exception) outlived the cars that they were attached to.

JB we agree on this one.

Rickey.
 
Last edited:
Status
Not open for further replies.
Back
Top