1997 850 NA - Switched to Pennzoil 5W-40

Sommerfeldt · Post by **Sommerfeldt** » 27 Aug 2016, 03:28

polskamafia mjl wrote:I would very much like to see a source for this.

+1

-S

Post by **xHeart** » 13 Dec 2016, 07:53

xHeart wrote:It is now more than 40,000 miles since the PCV (5+ yrs), and regular oil and and filter change every 4-months. It has been running very well - no motor issues.

But, It burns a quart every 3000 miles in urban driving.

Several posts at MVS suggest 5W40 could be a better choice. I am upgrading from conventional Pennzoil 5W30 to All Synthetic Pennzoil Euro 5W-40.

So my goal is to 1) sustain PCV; 2) oil change once a year, and not have to add an extra quart between the oil change.

Any thoughts?

Update:
Poured in the last 1L bottle Euro 5W30 -- 12th bottle since switching March 2016. Used 6L+ at the time of switch, and then 5L+ since to replace burned oil.

Engine is running great, no issues with cold weather/ smooth cold start after overnight. Engine use to shake before turning over on conventional Pennzoil 5W30.

Extreme temps are coming.

Post by **oragex** » 13 Dec 2016, 09:56

xHeart wrote: Update:
Poured in the last 1L bottle Euro 5W30 -- 12th bottle since switching March 2016. Used 6L+ at the time of switch, and then 5L+ since to replace burned oil.

Engine is running great, no issues with cold weather/ smooth cold start after overnight. Engine use to shake before turning over on conventional Pennzoil 5W30.

Extreme temps are coming.

When switching to synthetic, I would replace the filter only after about 500 miles and look at it closely. If it looks pretty clogged, I'd do another filter change after 1000 miles. My engine did indeed drink quite a bit of oil when switched to synthetic for the first 5000 miles. Since then the oil level has been stable.

Post by **xHeart** » 13 Dec 2016, 10:22

oragex wrote:
xHeart wrote: Update:
Poured in the last 1L bottle Euro 5W30 -- 12th bottle since switching March 2016. Used 6L+ at the time of switch, and then 5L+ since to replace burned oil.

Engine is running great, no issues with cold weather/ smooth cold start after overnight. Engine use to shake before turning over on conventional Pennzoil 5W30.

Extreme temps are coming.

When switching to synthetic, I would replace the filter only after about 500 miles and look at it closely. If it looks pretty clogged, I'd do another filter change after 1000 miles. My engine did indeed drink quite a bit of oil when switched to synthetic for the first 5000 miles. Since then the oil level has been stable.

Oil filter? How will you stop 6L of fluid running out at 500 miles check up?

Post by **oragex** » 13 Dec 2016, 10:49

There is some oil inside the filter housing and it will spill, but most oil sits at the bottom of the oil pan. At least, that's on P2 cars, might be different on P1 models.

Post by **misha** » 13 Dec 2016, 14:45

There is no need for that.It will not clog up.
Just perform a regular oil change....mineral old oil out-new full synth oil in.

Post by **FlyingVolvo** » 13 Dec 2016, 17:09

I'm no oil expert, but if you're oil filter is "clogged" after 500 miles, you probably want to start saving for a new engine.

Post by **abscate** » 13 Dec 2016, 19:11

You can tell if it's clogged by looking at it, anymore than you tell how dirty oil is by looking for it.

Post by **xHeart** » 14 Dec 2016, 08:00

LoL!

Colder morning.
Cranks, starts, but engine won't stay running after a second or two.
Searching MVS for topics on fuel related issues.

Post by **abscate** » 14 Dec 2016, 08:16

One or two second run/stall is classic immobilizer behavior - maybe the antenna ring is bad or dirty contacts?

The other thing easy to test is bad fuel pump relay - they often act up on change in temperature. The jumper wire is the definitive test.

1997 850 NA - Switched to Pennzoil 5W-40

Re: 1997 850 NA - Switched to Pennzoil 5W-40