Originally Posted by IDZRVIT (Post 395767)

We're discussing routine oil changes for normal vehicle operation - not tracking. Obviously you can't digest what the current API SM specification standard is. This is 2010 not 1970. There have been technological advances not only in engine design but also in lubricants. If you want to resist change that's fine. But don't come in here espousing that oil if not changed prior to 7500 miles will cause pre-mature failure. Because that is what you are insinuating which is BS. So, for you, I'll return the same courtesy :gtfo2:

Originally Posted by IDZRVIT (Post 395767)

We're discussing routine oil changes for normal vehicle operation - not tracking. Obviously you can't digest what the current API SM specification standard is. This is 2010 not 1970. There have been technological advances not only in engine design but also in lubricants. If you want to resist change that's fine. But don't come in here espousing that oil if not changed prior to 7500 miles will cause pre-mature failure. Because that is what you are insinuating which is BS. So, for you, I'll return the same courtesy :gtfo2:

Originally Posted by stormcrow (Post 394781)

Are people really this cheap? Oil changes are not something to "push out" or "extend". Really?

Originally Posted by stormcrow (Post 396253)

Straw-man arguments are your specialty, I see.

Originally Posted by shabarivas (Post 396403)

Seriously - we are nitpicking about an 80$ oil change or less if you do it yourself and people dont think twice before getting a 2k exhaust... priorities these days seem to be out of whack...

Originally Posted by nicknick (Post 396751)

Agreed. I'd also consider lazy too as another alternative.

Originally Posted by IDZRVIT (Post 396786)

No they aren't. You had nothing of substance nor fact to refute. Anyway, if you'd like to put up some facts I'd like to read them. Extrapolating with track friends doesn't do it here.

And no, I don't track my cars. But I am quite familiar with multi-million dollar naval propulsion systems if that counts toward knowing something about lubrication.

Originally Posted by ChrisSlicks (Post 394756)

The service manual calls for 3750/3 for heavy use, 7500/6 otherwise. Note that most of us fall into the first category and hence should follow the 3750 or even less if it is being tracked.

They describe the heavy use scenario as follows:

Follow Periodic Maintenance Schedule 1 (3750) if the driving habits frequently include one or more of the following driving conditions:
• Repeated short trips of less than 5 miles (8 km).
• Repeated short trips of less than 10 miles (16 km) with outside temperatures remaining below freezing.
• Operating in hot weather in stop-and-go “rush hour” traffic.
• Extensive idling and/or low speed driving for long distances, such as police, taxi or door-to-door delivery use.
• Driving in dusty conditions.
• Driving on rough, muddy, or salt spread roads.
• Towing a trailer, using a camper or a car-top carrier.

Originally Posted by IDZRVIT (Post 396786)

No they aren't. You had nothing of substance nor fact to refute. Anyway, if you'd like to put up some facts I'd like to read them. Extrapolating with track friends doesn't do it here.

And no, I don't track my cars. But I am quite familiar with multi-million dollar naval propulsion systems if that counts toward knowing something about lubrication.

Originally Posted by stormcrow (Post 394875)

With the 3.7l motor running oil temps of 200-220 under normal driving conditions (due to lack of oil cooler) why would anyone say that "oil won't break down under normal driving conditions" and recommend 7500 mile change intervals?

Originally Posted by jeffreyfranz (Post 397417)

No oil cooler??? YIKES! Even my RX-8 had dual oil coolers. now I know what my first after-market addition is going to be.

BTW, how good (accurate, functional) are the gauges in our cars? :eekdance:

Originally Posted by jeffreyfranz (Post 397417)

No oil cooler??? YIKES! Even my RX-8 had dual oil coolers. now I know what my first after-market addition is going to be.

BTW, how good (accurate, functional) are the gauges in our cars? :eekdance:

Originally Posted by schrute (Post 397475)

:iagree:oil temp gauge is good.

The water temp gauge is hard to read at a glance - just a single lit led in a row of 16 or so. You can add a scanguage if you like keeping track of stuff :)


http://www.the370z.com/members/schru...cangaugeii.jpg