guys,

just to get some idea, for those who uses synthetic oil,
how often do you change?

most recommended is 7500 miles.

do you think the contamination in the engine will not be able to contain the filter, since they are so small these days. The syn. oil
will not breakdown that soon, but the contaminates from dust, carbon, shit....etc.

thnx for your feed back.

most German cars...like the bmw, they do change until 8-9000 miles....and folks in Germany too.

bb

 

Some of the newer European cars with long oil intervals take 6 or 8 liters of oil. That makes a big difference...

Are your driving habits very consistant? If so, after maybe 6k miles get your oil analyzed. Then you'll find out how much it's 'used up'. Do that a few times to see how consistant you are.

 

I go anywhere from 3k to 6500 miles on Mobil1, depending on how much abuse the engine's seen in that interval.

 

I had an '88 Integra that I drove for 285K miles. I changed the oil filter at 3,500 miles and then the filter and oil at 7,000 miles. I used Fram filters that you can get at any Wal-Mart, K-Mart, Autozone, etc.

I adjusted the valves myself so I got to see under the valve covers a couple times a year. The cams showed no wear, and there was no sludge.

I will say that when I changed oil it was blacker that a black cat in a coal mine at midnight. Apparently, that didn't hurt the engine.

I now have an '03 RSX-S and plan to change oil on the same schedule.

 

Do your new baby a favor and use a better filter. I would highly recommend PureOne (blue box, also available at all the places you said), K&N (can be ordered via Autozone, has a spot for a 1" wrench to grab on, real handy), or Mobil 1.

You'll pay a couple bucks more for the PureOne and a few bucks more for the others, but you'll see much better filtration and less chance of failure.


If you are absolutely stuck on the Frams, get the X3 or the super heavy duties. Those at least don't have cardboard internals.

 

dude you guys are nuts, on dialy drivers its should be every 3k miles or less, NO MORE!!!

 

That was true more than a decade ago...

Cars newer than about a '92 model, check your owner's manual, about 7500 miles is the current recommendation. Oil technology and purification has come a long way.

In my case, the engine was built fresh, and using synthetic oil, contamination tests say I'm still changing it too early at 6k miles.

 

i change oil every 3k miles, for under 10 bucks a change, it is cheap insurance.

 

For dino juice, it is cheap.

Synthetic oil, which is pretty much superior in all aspects, runs about $30 per change for me, so I'm not going to piss it away before it's done it's fair share.

 

I use Mobil 1 5W30 and Fram Xtended Guard filter. Fram makes Honda filter and Xtended Guard is the most expensive that the local Walmart and Autozone carry. Therefore, I think it is as good if not much better than the Fram Honda filter. Honda recommends changing the filter every 15k and the oil every 7.5k. Well, I change the filter every 5k and the oil at every 15k. I do draw about 1.5 quart out and top off every time I change the filter.

Each time I change the filter, I notice that the oil is about 60% yellow and 40% black. After 200 miles on the 2nd filter, the oil is about 75% yellow and 25% black. At the time of the 3rd filter, the oil is about 35% yellow and 65% black. After 200 miles on that final filter, the oil is about 50% yellow and 50% black. When the 15k miles mark is reached, the oil is about 20% yellow and 80% black.

Synthetic oil is still good when it is black. It is dirty, but its property is still very good. Another filter will clean it up good. However, it is only 4 dollars a quart and a car is too expensive and prescious to use the same oil over and over. I am looking for a better filter than Fram. The filter I use costs 10 dollars. Honda filter cost about 5 dollars on the web.

I used Honda 5W20 oil for the first 4k miles and it was dirty by then. It is much better than other regular oil, but it should be changed every 4k miles instead of 7.5k miles suggested by Honda. It cost 3 dollars a quart at the store and 6 dollars a quart at the dealership. I stick with Mobil 1. For summer, spring, and even fall driving the new SuperSyn by Mobil 1 is much better because it has better Viscosity Index, which means it last much longer in high temperature. It doesn't have a good pour point like the regular Mobil synthetic, so I wouldn't use it for freezing winter.

Mobil 1 5W30 has -65 degree pour point. That is pretty good. Most quality regular oil has -40 when new and that number is more like -20 after the first 1.5 miles. This is why people change regular oil every 3k miles even though the filter is still filtering.