Timing belt replacement 2007 v70, low mileage oil change interval Topic is solved

[June]

The intervals are always based on miles and a yearly interval, whichever comes first. Its not just about replacing the oil but also about getting water and dirt out of there. Oil is cheap enough not to go cheap there.

Taking an extra drive will still wear the car more than not driving. I wouldn't bother. Especially not if it's a trip you wouldn't do otherwise. But letting the engine rev a bit when entering a motorway or the like every now and then doesn't hurt. With the autos I find this isn't really an issue, mine very often goes to ~6000.. And sure it's not good to only drive short trips (there are bicycles..) but you have to weigh the cost of driving just to boil away moisture from the oil (we're taking trips of an hour and more here) against just changing the oil (yearly is still fine).


My car does 3/4 of it's yearly miles on trips more than an hour long, a lot of them in the five hour plus range. I don't worry about the condition of the oil between 7500 mi changes.

This actually makes sense in my opinion. Really save a few bucks on oil changes resulting in prematurely replacing the car. Where's the savings? June

[dlundblad]

These are VVT engines, Variable valve timing (https://en.wikipedia.org/wiki/Variable_valve_timing). Near 3500 rpm when the valve opening timing changes, and the oil runs on different passages near the cam hub (my understanding).

Off topic, but this photo makes it look impossible to press cam seals in too far..

I've seen the other photo that shows where the varnish stops as well so that just adds to the confusion.

[oragex]

This is a better view. There is a more clear area where the old seal was sitting, near the edge, and a darker area behind

[abscate]

Bob - if you really want to stop the debate on oil change interval, you could run yours for a year, then send it to Blackstone Oil Analysis Labs for an analysis of water and fuel content. That will tell you if you are getting it warm enough to get the water out.

Driving habits differ so much that oil change interval debates get raucous quickly, but an analysis will tell you the right interval FOR YOU.

They cost about $30 or so.