Benefits of using the new 0w20 over the 5w30 for the 1.4T

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stc954
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Benefits of using the new 0w20 over the 5w30 for the 1.4T

Post by stc954 » Thu Jul 22, 2021 12:59 am

Hi guys


Are there any benefits in using the the new oil for the 1.4T (0w20) over dexos 1 gen 2 5w30? Do you think the chances of lspi will be greatly reduced as well with the new oil?

I have always used 5w30 I am not comfortable with the change... i am not sure why

Thanks all

Redman
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Re: Benefits of using the new 0w20 over the 5w30 for the 1.4T

Post by Redman » Thu Jul 22, 2021 7:06 am

stc954 wrote:
Thu Jul 22, 2021 12:59 am
Hi guys


Are there any benefits in using the the new oil for the 1.4T (0w20) over dexos 1 gen 2 5w30? Do you think the chances of lspi will be greatly reduced as well with the new oil?

I have always used 5w30 I am not comfortable with the change... i am not sure why

Thanks all
Vauxhall refer to the 0W20 0V0401547 as mandatory for 1.4T engine MY18 onwards. The new oil is ILSAC-GF6 whereas the 5w20 is ILSAC-GF5. There are supposedly more benefits from the 0W20 oil in illiminating oil generated lspi, less timing chain wear and improved fuel efficiency.

There must have been a mechanical engine modification after MY18 on the 1.4T, as cars upto that date have to use the 5W-30 oil. So appears to not be fully backward compatible with the 1.4T engine. These car and lube manufacturers have ploughed lots of money into these oil designs, so imho they should be good.

Boroboy
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Re: Benefits of using the new 0w20 over the 5w30 for the 1.4T

Post by Boroboy » Thu Jul 22, 2021 9:25 am

Yes the new oil is important for the engines that are advised to use it. Why? I'm not sure.
The ECU update is probably more important, so if you own an earlier model, make sure you've had it done.

RobG
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Re: Benefits of using the new 0w20 over the 5w30 for the 1.4T

Post by RobG » Mon Jul 26, 2021 5:49 pm

I had my engine replaced (under extended warranty) but after reading the posts above I'm wondering which oil is correct for the new engine. Car is 2017 but no idea when the new engine was built. The new engine number is 95 523 654 M KL208033. Anyone got any ideas for finding out when this was built?

Boroboy
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Re: Benefits of using the new 0w20 over the 5w30 for the 1.4T

Post by Boroboy » Wed Jul 28, 2021 12:11 pm

Redman wrote:
Thu Jul 22, 2021 7:06 am
stc954 wrote:
Thu Jul 22, 2021 12:59 am
Hi guys


Are there any benefits in using the the new oil for the 1.4T (0w20) over dexos 1 gen 2 5w30? Do you think the chances of lspi will be greatly reduced as well with the new oil?

I have always used 5w30 I am not comfortable with the change... i am not sure why

Thanks all
Vauxhall refer to the 0W20 0V0401547 as mandatory for 1.4T engine MY18 onwards. The new oil is ILSAC-GF6 whereas the 5w20 is ILSAC-GF5. There are supposedly more benefits from the 0W20 oil in illiminating oil generated lspi, less timing chain wear and improved fuel efficiency.

There must have been a mechanical engine modification after MY18 on the 1.4T, as cars upto that date have to use the 5W-30 oil. So appears to not be fully backward compatible with the 1.4T engine. These car and lube manufacturers have ploughed lots of money into these oil designs, so imho they should be good.
I also wonder if it was due to the introduction of the gpf within 2018 on petrol engines? Relating to the emission system too. Mine being the latest month within 2018 that does not have the gpf fitted. Change over being Sept on.
Speculation, obviously.

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