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How long should a PCV job last?

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jblackburn
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Post by jblackburn »

I'd give a higher mileage motor 4-5 years.

Use synthetic oil and the GOOD hoses please.
'98 S70 T5
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rspi
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Post by rspi »

The manual says 60,000 miles.
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
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cn90
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Post by cn90 »

There are 2 aspects of this PCV thingy:

1- The integrity of the parts (oil trap, hoses, clamps)...these parts easily last 100K.
One exception is the factory 3/8" vent pipe, which can crack after 4-5 years because it is plastic, not rubber.

2- The clog issue: when I overhauled my 98 V70 at 100K, no clog at all, just minor gunks here and there.
I replaced them all because the forum says so LOL.
I do 50-50 city-hwy mix.

The #1 cause of oil clog is: short trip and long oil interval. So if you can avoid short trip (if you do short trips all the time, then once a weekend do a long trip).
All my trips were more than 7 miles. I changed my oil every 5K-6K.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

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