Hello everyone!!

I’m new to the forum and wanted some input- has anyone tried an engine flush on their Turbo S70? I was thinking about getting the BG Engine Restoration Treatment, but don’t know if it will do more harm than good... opinions??

 

flush as in a Seafoam treatment to remove oil sludge or are you talking about a cooling system flush?

 

treatment to remove oil sludge - not seafoam though- the product is a dealer-only product called BG Engine Restoration,

 

Why the interest? do you have any existing issues or just looking to be proactive?

The engine flush concept is to throw in additional detergents into the oil to help soften gummy deposits so the oil carries them away. In the old days people would use ATF for 50 miles or so. The problem in my view is, where do the deposits go once they are softened? I'd be concerned with things like the deposits winding up in the PCV system or in a VVT (not a problem for your car) so I wouldn't want to run a detergent in the oil except for short durations - ie drop in the detergent, run for a few hundred miles, change the oil. BG Engine Restoration is really no different - its just an oil detergent but what's different is their marketing. They offer warranty programs and market through dealers to try and get you to do regular treatments at set intervals - kind of like a dealer selling you a tranny drain/fill service every 50K miles except they add something that says to the effect do this and we'll give you an extended warranty (for engine parts that rarely fail on a 98 S70).

My two cents is if you are planning on doing the PCV sometime soon doing an oil treatment prior would make sense (providing you drain the oil once it starts to darken). You can also check out the bobistheoil.com blog to see if there's some posts regarding oil detergent additives in general, you may see something about BG as well. Post up if you decide to try it out. I'm curious.

 

two steps ahead of you- PCV has been done in the last 2500km, think I’m ok to do it? I was planning on running the BG cycle, the rinse fluid oil they include, and then 2 full Cycle oil changes-

 

I'm not sure of the objective unless you have engine issues. To many of us, 150K miles (250k KM) is like age 40 in volvo years :-) Are you already running synthetic oil or planning to change from dino to synthetic? Just keep in mind on older cars the seals can harden so you might wind up with some weepy seals which a flush sequence may expose (I kept my 850T (since retired at 250K miles) on high mileage oil which has seal softeners with 5K changes).

 

No engine problems- already did the swap when i got the car 5000 Km ago, if gave me weepy cam seals, not a big deal since I was doing the distributor and tune up- just greatful that the rear main is still in tact (fingers crossed) otherwise running very smooth- turbo over and under boosts on these hot summer days- what do we think?

 

personally I wouldn't bother. I'd just keep up with the oil changes and consider using a high mileage oil. Also I recommend sticking with the oil weight spec'd in the owners manual.

 

ok no flush-
5W30 Snythetic Castrol High Mileage - was thinking about doing switching to Purple Power oil or liquimoly- thoughts?

 

I happen to prefer Castrol high mileage for my older cars - or peer products from Valvoline/Quaker/Pennzoil - whatever I find in Walmart. No reason to buy more expensive oil. I also buy Mann filters in bulk to keep with OEM standards. FCP Euro sells by the case.

 

So the turbo is leaking, brought it to my mechanic today I need some eBay turbo reccomendations either equal or added power- best quality for cheapest price..

 

Ok, a couple of things........first off BG Engine restore is not an engine flush, it is a solution of wear metals in an oil suspension. It is used to fill small microcracks and scuff marks in cylinders to restore compression and reduce oil burning.....it is NOT an oil flush. Second, I have rarely heard of a Volvo turbo leaking unless it or its internal seals were totally trashed. Check with your mechanic and make sure it is actually the turbo and not the seals for the oil feed or oil drain that are leaking. Leaking external oil seals are on a 150,000 mile car.

 

thanks for the words of warning- he’s a good mechanic won’t try and sell me a turbo unless I need it- but it has been leaking for so long, that it’s covered so late yesterday when I brought it to him he couldn’t pin point the leak- today he’s gonna brake clean it and watch for buildup/leaks and then repair what is hopefully just a seal or two.

 

update!!! The oil drain pipe seal from The turbo is leaving!! Thank God...

 

Kinda thought that is what it was. Glad to hear it worked out for you!!