castrol magnatec??
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From: essex
castrol magnatec??
searched some olf threads on here and people ar syaing magnatec is crap oil.......i have just today done an oil change with the stuff
there is a few saying its fine i used 10w 40w part synthetic been out and done a good 40 miles after the change and she seems better than ever i used a genuine subaru filter ...... if its meant to be this bad shall i drain the 30 quids worth of oil and swap for something different ???? or just leave it now until i do another change in 6 months???
there is a few saying its fine i used 10w 40w part synthetic been out and done a good 40 miles after the change and she seems better than ever i used a genuine subaru filter ...... if its meant to be this bad shall i drain the 30 quids worth of oil and swap for something different ???? or just leave it now until i do another change in 6 months???
Joined: Apr 2002
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From: The hell where youth and laughter go
Typically Magnatec is semi synthetic (although there are fully synthetic versions of Magnatec too!). Its no better or worse than other brand of semi synth oil. Subaru UK specify either A3 or A1 grade oil for pretty much all of their cars which usually conforms to most Magnatec branded oils.
The only thing that has changed is the reccomended viscosity (10w-40 for early cars, 5w-30 for later cars), both of which magnatec are available in. And that will depend on the year and model....assuming it is a standard car and driven in a manner typical of UK driving (wink wink
)....So...
....How you drive it is also the key here.
Repeated short journeys less than 30mins, it will degrade quicker with contamination and will need changing sooner. I reccommed 6months.
Hard use (B-road blasting )/sustained high speed, the higher temperatures experienced may mean you need a thicker oil or a fully synthetic oil as well as changing it more often.
If the car runs alot more horsepower than stanadard, that will also need to be considered.
The only thing that has changed is the reccomended viscosity (10w-40 for early cars, 5w-30 for later cars), both of which magnatec are available in. And that will depend on the year and model....assuming it is a standard car and driven in a manner typical of UK driving (wink wink
)....So.......How you drive it is also the key here.
Repeated short journeys less than 30mins, it will degrade quicker with contamination and will need changing sooner. I reccommed 6months.
Hard use (B-road blasting
)/sustained high speed, the higher temperatures experienced may mean you need a thicker oil or a fully synthetic oil as well as changing it more often.If the car runs alot more horsepower than stanadard, that will also need to be considered.
Last edited by ALi-B; Sep 19, 2012 at 11:15 PM.
Joined: Apr 2002
Posts: 38,078
Likes: 310
From: The hell where youth and laughter go
I can honestly only say I've only ever seen that happen on cars used for short jorneys, or ones that have been neglected having overdue or missed oil changes on repeated occasions.
That said Helix does the same.
The worst was a BMW used on the BMW's typical longlife service plan, but incorrectly using Magnatec A3 10w-40 (DIY/back street services for over 4 years)....It should have been using LL-98 spec oil or better; Magnatec is not LL-98, never has been. That meant it went for upto 2 years and/or 15,000 miles between oil changes, when the oil was only good for half that period........sludgetastic.
That said Helix does the same.
The worst was a BMW used on the BMW's typical longlife service plan, but incorrectly using Magnatec A3 10w-40 (DIY/back street services for over 4 years)....It should have been using LL-98 spec oil or better; Magnatec is not LL-98, never has been. That meant it went for upto 2 years and/or 15,000 miles between oil changes, when the oil was only good for half that period........sludgetastic.
Last edited by ALi-B; Sep 20, 2012 at 12:39 AM.
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