Oil selection.
- dazthephot
- Joined: Wed 09 Apr, 2008 18:58
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Oil selection.
This is a divisive topic I know so I’ll keep it light.
How different are oils these days? If I put fully synth 5w30 in instead of 5w40 if I buy a brand like Triple QX instead of Castrol what problems will I cause?
As I understand it in the most simplistic terms the 5 bit affects cold starting and the 40 bit affects running temps.
Surely oils are made to a higher standard than existed when my car was built so spending £30 on oil instead of £60 is nothing more than a marketing gimmick?
Happy to be educated.
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How different are oils these days? If I put fully synth 5w30 in instead of 5w40 if I buy a brand like Triple QX instead of Castrol what problems will I cause?
As I understand it in the most simplistic terms the 5 bit affects cold starting and the 40 bit affects running temps.
Surely oils are made to a higher standard than existed when my car was built so spending £30 on oil instead of £60 is nothing more than a marketing gimmick?
Happy to be educated.
Sent from my iPhone using Tapatalk Pro
Last edited by dazthephot on Mon 10 Feb, 2020 12:26, edited 1 time in total.
Re: Oil selection.
I’m not a brand specific person when it comes to oil.
If it meets the required spec then it’s ok with me.
If it meets the required spec then it’s ok with me.
Gazza
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
- dazthephot
- Joined: Wed 09 Apr, 2008 18:58
- Posts: 266
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Re: Oil selection.
I’ve seen various extra letters when looking for oil but have no idea what they mean. What’s the required spec for ours?Gazza wrote:I’m not a brand specific person when it comes to oil.
If it meets the required spec then it’s ok with me.
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Re: Oil selection.
Look for LLO4
Gazza
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"
Z3 S54 M roadster , BMW Z1, BMW M3 CSL, Z4M Coupe
- dazthephot
- Joined: Wed 09 Apr, 2008 18:58
- Posts: 266
- Contact:
Re: Oil selection.
Nice oneGazza wrote:Look for LLO4
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- Joined: Wed 25 May, 2011 09:26
- Posts: 32
- Location: Exmouth
Re: Oil selection.
These guys are a recommend https://www.opieoils.co.uk/
The search function by vehicle will give a list of all the oils recommended for your vehicle from an oil specialist. Hard to beat their prices for premium oils also. They do packs including filters etc. Worth a look.
The search function by vehicle will give a list of all the oils recommended for your vehicle from an oil specialist. Hard to beat their prices for premium oils also. They do packs including filters etc. Worth a look.
- dazthephot
- Joined: Wed 09 Apr, 2008 18:58
- Posts: 266
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Re: Oil selection.
Excellent, thank you.
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- Joined: Fri 19 Jun, 2009 10:27
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- Location: Daglan, France
Re: Oil selection.
I would avoid 'Longlife' oils, as they are invariably very thin at the cold end of their viscosity range - such as the popular 0W - 30 SAE type. In an old engine, or a badly-run in engine they can produce high oil consumption (such as the BMW 3 litre engine) and only have a benefit for those who lack mechanical sympathy, and want to blast down a motorway on a cold engine.
I would prefer to use a 10-40 synthetic, and change it every year, ignoring the Service Indicator lights, but resetting them every time the second light goes out.
I would prefer to use a 10-40 synthetic, and change it every year, ignoring the Service Indicator lights, but resetting them every time the second light goes out.
A Z3 is not just for Christmas - it's for life!
- dazthephot
- Joined: Wed 09 Apr, 2008 18:58
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Re: Oil selection.
This is what I’ve gone for. I do try and change the oil at least once per year. I have a fair amount of sludge so I’ll be using a flush too.Mike Fishwick wrote:I would avoid 'Longlife' oils, as they are invariably very thin at the cold end of their viscosity range - such as the popular 0W - 30 SAE type. In an old engine, or a badly-run in engine they can produce high oil consumption (such as the BMW 3 litre engine) and only have a benefit for those who lack mechanical sympathy, and want to blast down a motorway on a cold engine.
I would prefer to use a 10-40 synthetic, and change it every year, ignoring the Service Indicator lights, but resetting them every time the second light goes out.
https://www.carparts4less.co.uk/p/tripl ... -521776031
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Re: Oil selection.
I've used Triple QX for many years in many cars with no problems. Watch out for and take advantage of the many sales, the BMW LL spec is mentioned on the container.
- dazthephot
- Joined: Wed 09 Apr, 2008 18:58
- Posts: 266
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Re: Oil selection.
Thanks.
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