Aussie Holden VT Commodore Oil
- Thread starter Francis
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Castrol say 10W40, BP 5W30 GF-4 or Visco 5000 (5W40) or Visco 3000 (15W50) etc. 5W40 a good all round choice and heaps to choose from.
Hi,
you have already had expert and accurate advice. Castrol also recommended their XT1030 a 10w-30 ILSAC GF-2 mineral lubricant. This was their specified "low viscosity" oil
As mentioned by sprintman (a knowledgeable Ozzie) a 5w-40 viscosity oil is a good choice.
My Son uses Delvac 1 5w-40 in his VS V8 SS and a good friend uses the same in his VX XU6 - both use PureOne filters available from "autObarn".
Living in Brisbane, they do annual oil changes both covering about 20k kms
Regards
Doug
you have already had expert and accurate advice. Castrol also recommended their XT1030 a 10w-30 ILSAC GF-2 mineral lubricant. This was their specified "low viscosity" oil
As mentioned by sprintman (a knowledgeable Ozzie) a 5w-40 viscosity oil is a good choice.
My Son uses Delvac 1 5w-40 in his VS V8 SS and a good friend uses the same in his VX XU6 - both use PureOne filters available from "autObarn".
Living in Brisbane, they do annual oil changes both covering about 20k kms
Regards
Doug
Hi.
We use Castrol FMX Magnatec 10w-30 for the last 4 years and no dramas.Holden recommending 10w-30 VS onwards for 3.8L engine.Had few oil leaks with 20w-50 and very low leaks with 10w-30.must be the low running pressure's with 10w-30 low viscosity oil.Yes 5w-40 is another good choice.
Try Castrol magnatec 5w-40SP.API SM/CF
ACEA A3/B3/B4
We use Castrol FMX Magnatec 10w-30 for the last 4 years and no dramas.Holden recommending 10w-30 VS onwards for 3.8L engine.Had few oil leaks with 20w-50 and very low leaks with 10w-30.must be the low running pressure's with 10w-30 low viscosity oil.Yes 5w-40 is another good choice.
Try Castrol magnatec 5w-40SP.API SM/CF
ACEA A3/B3/B4
Magnatec 5W40 where do you get that?
Magnatec 5w40 is a "workshop oil".
http://www.castrol.com/liveassets/b...assets/downloads/m/Magnatec_5w40_B1802_05.doc
I'd be interested to hear what the recommended viscosity for the 3800 V6 is for the North American market.
http://www.castrol.com/liveassets/b...assets/downloads/m/Magnatec_5w40_B1802_05.doc
I'd be interested to hear what the recommended viscosity for the 3800 V6 is for the North American market.
Patman
Staff member
The GM 3800 V6 is one of the only engines left which actually has 10w30 listed as it's recommended viscosity. Everything else by GM comes with 5w30 as it's recommended viscosity.
My 2000 Buick Regal, Series II 3800 V6, states 10W30 right on the oil fill cap. I had a good uoa with Mobil 1 10W-30 and should have one coming up soon with GC 0W-30.
My owners manual specifically states to not use other grades and specifically says not 20W-50.
I like this engine. I don't know if a 20W-50 will cause problems, probably not, but you will have sluggish performance and waste fuel. I tried Castrol 10W-40 Synthetic and it is a very light 40wt. It works.
Don't know why experience would be any different in OZ.
I'd just say no to 20W-50.
These engines are very easy on oil and I think something like GC is a perfect match. Anything thicker is just not needed.
I don't think it's all about CAFE here on this one at all. I think GM isn't convinced on 10W-40 dino quality here due to past performance and 20W-50 is not needed. The manual suggests you may consider using a synthetic 5W-30 in extremely cold conditions. That wouldn't apply down under.
[ May 04, 2005, 12:06 PM: Message edited by: haley10 ]
I like this engine. I don't know if a 20W-50 will cause problems, probably not, but you will have sluggish performance and waste fuel. I tried Castrol 10W-40 Synthetic and it is a very light 40wt. It works.
Don't know why experience would be any different in OZ.
These engines are very easy on oil and I think something like GC is a perfect match. Anything thicker is just not needed.
I don't think it's all about CAFE here on this one at all. I think GM isn't convinced on 10W-40 dino quality here due to past performance and 20W-50 is not needed. The manual suggests you may consider using a synthetic 5W-30 in extremely cold conditions. That wouldn't apply down under.
[ May 04, 2005, 12:06 PM: Message edited by: haley10 ]
I've run all sorts of oil like sprintman, but currently running 5w-30 full synthetic in my 3800 motor.
Also seems that this motor is fairly prone to leaks from the inlet manifold. Oil first down the back of the motor then water.
Don't run 20w-50. D1 would be a good choice if you want a 40 grade.
Also seems that this motor is fairly prone to leaks from the inlet manifold. Oil first down the back of the motor then water.
Don't run 20w-50. D1 would be a good choice if you want a 40 grade.
Motul 300V I presume ?
theguru
Member
Member # 1419
posted May 04, 2005 09:55 AM
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You presume correctly.
Hello to TheGuru
I refer to your last post here, any update on how the Motul 300V 5w30 has performed in the 3800 engine in terms of mpg, power increase, engine smoothness etc.
Virginoil
Member
Member # 1419
posted May 04, 2005 09:55 AM
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You presume correctly.
Hello to TheGuru
I refer to your last post here, any update on how the Motul 300V 5w30 has performed in the 3800 engine in terms of mpg, power increase, engine smoothness etc.
Virginoil
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