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Switching to synthetic oil...

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
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Mikele82
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Switching to synthetic oil...

Post by Mikele82 » Thu Aug 15, 2019 1:25 pm

So my xc70 2004 180,000mil i bought needs an oil change.
former owner extensive records show only regular oil change and 6 months intervals.

IPD recommended and sold me semi synthetic.
https://www.ipdusa.com/products/11929/1 ... kit-125420

ive read a lot to about synthetic causing leaks when switching from regular.
is that true ?



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June
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Re: Switching to synthetic oil...

Post by June » Thu Aug 15, 2019 1:40 pm

No you should not have trouble. June
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My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

ionianp2
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ionianp2

Re: Switching to synthetic oil...

Post by ionianp2 » Thu Aug 15, 2019 2:37 pm

I switched from conventional to full synthetic on my 04 S60 for 3 years now and haven’t had any issues.
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oragex
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Re: Switching to synthetic oil...

Post by oragex » Thu Aug 15, 2019 5:12 pm

It depends, was the car run on mineral (non synthetic) before ? If so you should be careful at 180k miles. I give a few tips here www.youtube.com/watch?v=IGU-f1MA-VY


2003 2.4i S60 automatic 125k miles
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93SCMax
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93SCMax

Re: Switching to synthetic oil...

Post by 93SCMax » Thu Aug 15, 2019 7:42 pm

If it were my new (used) car, at 180k, I'd stick with dino oil. If she isn't leaking oil (?) with dino, why chance it now?

All my cars run Mobil 1 5W30 or 10W30 synthetic, but started using the synthetic at the 1st oil change. I'm a fan of synthetic but believe switching late in an engine's life could be problematic with seals and "loosening" gunk.



Georgeandkira
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Georgeandkira

Re: Switching to synthetic oil...

Post by Georgeandkira » Thu Aug 15, 2019 7:51 pm

Since it was serviced regularly there shouldn't be any globs of sludge in it.

Also, given that all this stuff has improved immeasurably over the life of this car AND that you don't live in Death Valley or the North Pole, sticking with a good quality (no bargain weirdo brands) conventional would be OK.

What would be good to do is servicing of the PCV system. If the box and passages are plugged with crud you'd then know what to focus on.
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Rattnalle
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Re: Switching to synthetic oil...

Post by Rattnalle » Thu Aug 15, 2019 11:29 pm

I'll go with the "there won't be an issue"-camp. Any issues could just as well be caused by using a higher detergent dino oil. But such issues are symptoms of an engine that's already shot and will go soon regardless.

Perhaps throw in an extra filter change after a few k, then you'll see if there's stuff coming loose or not. I've had some extra stuff there sometimes when switching oil brands with the same classification. Probably different amounts of detergents in them.



Katten
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Re: Switching to synthetic oil...

Post by Katten » Fri Aug 16, 2019 4:38 am

This might be a dumb question but I thought all these cars ran fully synthetic oil? Or atleast I would never be recomended anything else by a autoparts store in sweden :)



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Rattnalle
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Re: Switching to synthetic oil...

Post by Rattnalle » Fri Aug 16, 2019 4:40 am

Katten wrote:
Fri Aug 16, 2019 4:38 am
This might be a dumb question but I thought all these cars ran fully synthetic oil? Or atleast I would never be recomended anything else by a autoparts store in sweden :)
We haven't had dino oil around for ages anyhow. But the lowest OK spec is ACEA A1 which is really old so they're not that picky really. Unless you've got a turbo and drive it hard.



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abscate
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abscate

Re: Switching to synthetic oil...

Post by abscate » Fri Aug 16, 2019 4:41 am

Katten wrote:
Fri Aug 16, 2019 4:38 am
This might be a dumb question but I thought all these cars ran fully synthetic oil? Or atleast I would never be recomended anything else by a autoparts store in sweden :)
No dumb questions here, Katten

Every turbo car should run synthetic, and most NA cars also should run synthetic. It’s just better stuff.

The longer drain interval justifies the higher price , not even counting the labor


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