ASDA Cheap Castrol GTX semi synthetic 10w40 or 15w40

rustic · 16-01-2015, 21:58

As per title, cheap Castrol GTX oil, semi synthetic, 4 litres £13 in ASDA now. Was around £21
10w40 or 15w40 maybe other types, but these I was interested in.
I have used either on my 2.7td Mav over the years.... nearly 20 years lol.
Not sure how much longer it's on... but two would be enough for a complete oil change... save it till next time.

bry · 16-01-2015, 23:20

I use 10- 40 semi synthetic. And that price is good..

rustic · 18-01-2015, 19:38

Someone mentioned good oil, so it might still be on offer... not sure though...

despot67 · 01-02-2015, 18:04

tesco have it in 2 litres for 6 quid, 15-40.

I bought 3 containers as my manual states 6.2L if c hanging filter - it lies as even though mine is a 2003 I think its 7.2 litres?

Banshee · 01-02-2015, 18:16

I will never ever use Semi again after going Mineral and listening to the difference in engine sound

10w-40 Mineral makes my 04' pur like a cat whereas the Semi made it tap a little

panelbeater · 01-02-2015, 19:46

i did semi last change,but gone back to good old mineral as it seems to be better.

macabethiel · 02-02-2015, 20:25

Quote:

Originally Posted by Banshee

I will never ever use Semi again after going Mineral and listening to the difference in engine sound

10w-40 Mineral makes my 04' pur like a cat whereas the Semi made it tap a little

There is no differnce in engine sound if its identical viscocity be it Mineral, Synthetic or Semi. In fact with the better additives the reverse should be true if anything.
Your motor probably sounded a little tappy as the old oil had thickened and degrade making it sound quiet

Trouble is the heavier grade fully synthetics are not generally stocked by the usual retailers so its hunt round for the likes of Opie oils to get the right grade.

I use Fuchs 10W/40 fully syntetic and my car sounded quieter than the previous semi.

I think a lot of it is between my ears though I convince myself it sounds and goes better after an oil change to justify the cost.lol

16-01-2015, 21:58	#1
rustic Senior Member Join Date: Feb 2007 Location: Staffordshire Vehicle: Maverick Mk I 2.7 TD LWB Posts: 7,825	ASDA Cheap Castrol GTX semi synthetic 10w40 or 15w40 As per title, cheap Castrol GTX oil, semi synthetic, 4 litres £13 in ASDA now. Was around £21 10w40 or 15w40 maybe other types, but these I was interested in. I have used either on my 2.7td Mav over the years.... nearly 20 years lol. Not sure how much longer it's on... but two would be enough for a complete oil change... save it till next time. __________________ Ford Maverick GLX 1995 2.7TD LWB in illusion silver, 98k miles. Owned since new, for 22 years. Best car I have ever owned. Just wish I could drive it more.

18-01-2015, 19:38	#3
rustic Senior Member Join Date: Feb 2007 Location: Staffordshire Vehicle: Maverick Mk I 2.7 TD LWB Posts: 7,825	Someone mentioned good oil, so it might still be on offer... not sure though... __________________ Ford Maverick GLX 1995 2.7TD LWB in illusion silver, 98k miles. Owned since new, for 22 years. Best car I have ever owned. Just wish I could drive it more.

01-02-2015, 18:16	#5
Banshee Moderator Join Date: Jul 2012 Location: West Midlands Vehicle: 04 2.7 SWB Terrano II Van Posts: 13,526	I will never ever use Semi again after going Mineral and listening to the difference in engine sound 10w-40 Mineral makes my 04' pur like a cat whereas the Semi made it tap a little __________________ Moderator 04' Terrano II SE 2.7 TDi SWB Commercial in Silver - Project Thread Toyo Open Country M/T 33's on 10J Steels, Super Strong Steering Job Navara D22 Snorkel, Front LOKKA, Maunal Hubs, EGR Blank TunitII ECU Chip, 3" Body Lift, 2" Suss Lift, Heat Exchanger Black Interior, 3.0 Borg&Beck Clutch, Eckes Heated Fuel Filter 99' Y61 Patrol GR SE 2.8 TD6 LWB in Blue/Silver - Project Thread Engine Transplant - In Progress!!!

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16-01-2015, 23:20	#2
bry Senior Member Join Date: May 2013 Location: South Yorkshire.. Vehicle: Nissan Terrano MK 2 SE Posts: 1,757	I use 10- 40 semi synthetic. And that price is good..

01-02-2015, 18:04	#4
despot67 Senior Member Join Date: Jul 2013 Location: Stoke on Trent Vehicle: Terrano 2 LWB 2.7td Posts: 158	tesco have it in 2 litres for 6 quid, 15-40. I bought 3 containers as my manual states 6.2L if c hanging filter - it lies as even though mine is a 2003 I think its 7.2 litres?

01-02-2015, 19:46	#6
panelbeater Senior Member Join Date: Dec 2012 Location: clacton on sea essex Vehicle: nissan terrano 2 2.7 tdi Posts: 1,638	i did semi last change,but gone back to good old mineral as it seems to be better.