Stop Oil Leak Additive Recommendations? - Alfa Romeo Forum
You are currently unregistered, register for more features.    
 6Likes
  • 2 Post By amfalconer
  • 1 Post By bazzbazz
  • 2 Post By Fruity
  • 1 Post By Tenebreaux
 
Thread Tools
(Post Link) post #1 of 9 Old 08-02-19 Thread Starter
Status: -
AO Member
 
Mighty-147's Avatar
 
Join Date: Oct 2007
Location: United Kingdom
County: Devon
Posts: 437
Stop Oil Leak Additive Recommendations?

Hi all,

So I’ve only just discovered that you can get an additive to put in with the oil to stop minor oil leaks!!!

I’ve had a slow oil leak forever with the car; only a small drip on the driveway but it is enough to be irritating.
Used to be the sump plug but that’s dry now.

So my question is has anybody used one and has anyone any recommendations to avoid or use?

There STP, Redex, Wynn’s and others.

I have a 2001 147 2.0L Twin Spark Petrol Manual.

Any help muchly appreciated thanks!
Mighty-147 is offline  
Sponsored Links
Advertisement
 
Status: -
AO Silver Member
 
amfalconer's Avatar
 
Join Date: Aug 2011
Location: United Kingdom
County: Hampshire
Posts: 2,472

Member car:

159ti 2.4JTDm

Not a great idea as they can block up minor oil passages, then it will have to be drained and cleaned out.

Your twinny relies on oil pressure to actuate variable valve timing etc.

Always sceptical of anything like K Seal, rad weld etc as it just masks the symptoms - you'd be safer locating the leak and fixing it, or short term, park over some cardboard or something where you won't leave a nice oily stain!
Mighty-147 and duemila like this.
amfalconer is offline  
Status: "Ruby" has been Torpedoed!
AO Member
 
bazzbazz's Avatar
 
Join Date: Apr 2013
Location: Brisbane Australia
County: Queensland
Posts: 476

Member car:

Alfa 156

Just one word - DON'T
willis1 likes this.
bazzbazz is offline  
Status: Race cars in progress
AO Silver Member
 
Gertie's Avatar
 
Join Date: Oct 2007
Location: South Africa
County: Gauteng
Posts: 5,986
Garage
A small oil blotch on the pavement is better than a blown motor. Stop leak is only ok when you know the car is going to be scrapped soon, including the motor.

If the leak irritates you 400 pounds worth, then have the motor taken out, refresh the seals and put back.

If the leak irritates you 10 pounds a month worth, get a decent belly pan and have it washed once a month.
Gertie is offline  
Status: -
AO Silver Member
 
Join Date: Jan 2018
County: -
Posts: 2,038
An oil stop leak is never going to be as good as fixing the fault. That said, I think there is confusion about how it works. It's not a product like K-Seal for cooling systems or something to reduce piston ring blow-by.

An oil stop leak is simply a concentrated ester based additive which softens and swells seals slightly. It does the opposite of Poly Alfa Olefin based oil.

That said, engine seals can be made of specific materials tailored to each application and additive will not affect all seals equally so it is hardly a targeted treatment. It should be safe enough to use and interestingly very similar to engine oil marketed for high mileage engines. The principles are the same.
Mighty-147 and SLM3CFC like this.
Fruity is offline  
(Post Link) post #6 of 9 Old 20-05-19 Thread Starter
Status: -
AO Member
 
Mighty-147's Avatar
 
Join Date: Oct 2007
Location: United Kingdom
County: Devon
Posts: 437
Well Happy

Hello all,

Thanks for all of the advice much appreciated!
Especially:

Quote:
Originally Posted by amfalconer View Post

Your twinny relies on oil pressure to actuate variable valve timing etc.
That I hadn't realised/ appreciated.

I've not added any additive, just carried on using oil.

Petronas Syntium 800 EU (used to use 1000)

Anyway I think I traced the leak...

So a while back when I had my CAM Belt and Timing Belt etc changed; the chap said I needed a new seal.

The thing is; it looks like the small leak is coming from the top of the engine; looking at the top panel at the lower right hand corner it seems a trickle is coming from there.....

Mighty-147 is offline  
Status: -
AO Member
 
Join Date: Aug 2017
County: -Armagh
Posts: 221

Member car:

147 1.6 TS Lusso

Quote:
Originally Posted by Mighty-147 View Post
Hello all,

Thanks for all of the advice much appreciated!
Especially:



That I hadn't realised/ appreciated.

I've not added any additive, just carried on using oil.

Petronas Syntium 800 EU (used to use 1000)

Anyway I think I traced the leak...

So a while back when I had my CAM Belt and Timing Belt etc changed; the chap said I needed a new seal.

The thing is; it looks like the small leak is coming from the top of the engine; looking at the top panel at the lower right hand corner it seems a trickle is coming from there.....

Rocker cover gasket. Cost you about 15 quid for a new one and you can do it yourself in under an hour.

ETA: Good step by step guide here:

https://www.alfaowner.com/Forum/alfa...ml#post2415602 (Alfa GTV 2ltr Twinspark - How to change your cam cover gasket)
Fruity likes this.
Tenebreaux is offline  
Status: -
AO Silver Member
 
amfalconer's Avatar
 
Join Date: Aug 2011
Location: United Kingdom
County: Hampshire
Posts: 2,472

Member car:

159ti 2.4JTDm

Yep, nice easy job, apart from the 1 bolt round the back of the head, which isn't obvious, once you know it's there, it's a quick job.
amfalconer is offline  
Status: Still going strong.
AO Silver Member
 
armoore's Avatar
 
Join Date: Jan 2002
Location: United Kingdom
County: Surrey
Posts: 4,900
I would add that where the gasket goes over the large and long camshaft cap on the left there are corners where it changes direction to do so, use a dab or RTV sealant there otherwise it may leak.

Last edited by armoore; 21-05-19 at 09:27.
armoore is offline  
Reply

Go Back   Alfa Romeo Forum > Supported Alfa Romeo Models > Technical & Vehicle Assistance > Alfa 147, 156 & GT

Tags
additive , leak , oil , recommendations , stop

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
16 important OIL questions and answers oilman Alfa 147, 156 & GT 339 03-06-18 10:39
Gear Oil FAQ's oilman Alfa 147, 156 & GT 9 16-10-08 13:59
Gear Oil Questions and Answers oilman Alfa 147, 156 & GT 0 19-01-08 12:07

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome