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DISCUSSION => Engine + Driveline => Topic started by: no1_jazz on July 20, 2009, 02:51:02 PM

Title: Engine Oil
Post by: no1_jazz on July 20, 2009, 02:51:02 PM

Hi there guys just a quick question...

I normally use

Castrol Magnatec 15W-40 Semi-Synthetic Engine Oil meets ACEA A3/B3

garages are telling me now to use

Castrol GTX 15w-40 High Mileage for engines over 75,000 miles

my car has 165k on the clock all genuine.

Im a little confused guys all help will be much appreciated

Regards
j

Title: Engine Oil
Post by: no1_jazz on July 21, 2009, 06:16:33 AM

anybody??

Title: Engine Oil
Post by: johnwoo on July 21, 2009, 06:29:10 AM

i just use what the bentley manual recommends. 15-50 mobil 1

Title: Engine Oil
Post by: DesktopDave on July 21, 2009, 07:03:04 AM

I use synthetics too, in the engine, transmission and differential.  Your mechanic is probably seeing a lot of little oil leaks...GTX will minimize these.  The synthetic oils will ooze more as they're thinner.  I just ignore the leaks & run Mobil1 5w30.

Title: Engine Oil
Post by: no1_jazz on July 21, 2009, 02:55:34 PM

dose anybody know what bmw recomend on our engines? m42b18

Title: Engine Oil
Post by: tjts1 on July 21, 2009, 04:26:01 PM

Shell rotella synthetic 5w40. It's cheaper than some non synthetics.

Title: Engine Oil
Post by: nickmpower on July 21, 2009, 04:43:48 PM

15-50 is that a joke?

Title: Engine Oil
Post by: rob_e30 on July 21, 2009, 06:06:55 PM

Quote from: nickmpower;75626

15-50 is that a joke?

That's what we run in the race car.  Not sure it's really necessary for street cars, but do what you like.

Title: Engine Oil
Post by: johnwoo on July 22, 2009, 03:08:16 AM

Quote from: nickmpower;75626

15-50 is that a joke?

thats what the manual and the bentley recommends.

Title: Engine Oil
Post by: 318lotis on July 22, 2009, 12:07:14 PM

i use 5-30 mobile 1  extended performance , and very happy.  ive tried royal purple 5-30 and it leaks more, but the revs seem more intence