Hello to everyone here on this great forum. I need to change the oil in a 87 Buick Grand National. The owner prefers full synthetic over dino oil to protect against coking in the turbocharger. I will also be adding a bottle of Zddp if necessary. Which Full synthetic oil sold at Autozone would you recommend and why. Thank you for the advice.
Buick Grand National Oil
- Thread starter Turbo
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A guy at the Oreilly by my house had one and he used Amsoil 20W50 in it.
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I'd hit WallyWorld and go for M1 or PU whatever one cheaper. I'd assume a 10-30 for your GN if it's in good shape. But that's just me. Wanted one bad back in the day!!! Had IROC's instead.
I would pre-determine a OCI based upon the condition and how hard you run it and then grab an UOA to make sure I'm on the right "track" if you will.
I would pre-determine a OCI based upon the condition and how hard you run it and then grab an UOA to make sure I'm on the right "track" if you will.
Castrol Syntec 0W-30 (German Castrol), Mobil 1 High Mileage 10W-40, or Mobil 1 0W-40.
GC 0w30 is just about perfect for that engine. If not any top shelf 5w30 synthetic.
Originally Posted By: Turbo
Hello to everyone here on this great forum. I need to change the oil in a 87 Buick Grand National. The owner prefers full synthetic over dino oil to protect against coking in the turbocharger. I will also be adding a bottle of Zddp if necessary. Which Full synthetic oil sold at Autozone would you recommend and why. Thank you for the advice.
For that sweet ride I would not go with a regular oil from the local parts store. I would go with a premium synthetic in the correct weight. If it were me I would use the following...
1 - Royal Purple HPS
2 - Amsoil SSO
3 - Schaeffers 9000
4 - Redline
5 - Brad Penn
I wouldn't run a API SM/SN oil in it.
Hello to everyone here on this great forum. I need to change the oil in a 87 Buick Grand National. The owner prefers full synthetic over dino oil to protect against coking in the turbocharger. I will also be adding a bottle of Zddp if necessary. Which Full synthetic oil sold at Autozone would you recommend and why. Thank you for the advice.
For that sweet ride I would not go with a regular oil from the local parts store. I would go with a premium synthetic in the correct weight. If it were me I would use the following...
1 - Royal Purple HPS
2 - Amsoil SSO
3 - Schaeffers 9000
4 - Redline
5 - Brad Penn
I wouldn't run a API SM/SN oil in it.
Last edited:
Whatever is on sale. It really doesn't matter.
That thing is just begging for Red Line 0W-40, but if it MUST BE on Sino Mart's shelf, the excellent (and just as strong an add pack as the M1 high mileage stuff) M1 0W-40 would be my choice.
Is it pure stock, or is it modded in ANY way??
Is it pure stock, or is it modded in ANY way??
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- 29,558
If I were going to run to the store right now to buy oil for it:
Syntec 5W50
or
Mobil 1 15W50
Syntec 5W50
or
Mobil 1 15W50
VOA of GC 0w30 below. As you see its a perfect API SL formula for your setup.
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2365765
Highlights.
Calcium - 184
Mag - 538
Phos - 923
Zinc - 1116
Overall TBN - 9.7
As you can see it has pretty much enough Zinc for your setup and i don't recommending adding anything to it.
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2365765
Highlights.
Calcium - 184
Mag - 538
Phos - 923
Zinc - 1116
Overall TBN - 9.7
As you can see it has pretty much enough Zinc for your setup and i don't recommending adding anything to it.
Lubro-moly 10w-40 with mos2 already added.
Great stuff
Great stuff
I'm guessing that engine probably beats the snot out of its oil.
If your customer is set on a synthetic, I'd look for any of the ACEA A3/B3/B4 oils.
As a few other members have noted, either Mobil 1 0W-40 or GC 0W-30 should work well.
If your customer is set on a synthetic, I'd look for any of the ACEA A3/B3/B4 oils.
As a few other members have noted, either Mobil 1 0W-40 or GC 0W-30 should work well.
I'd probably run 5W-40 Valvoline Synpower in it.
You're saying a full syn oil, of recent vintage (SM/SN) wouldn't work in a vehicle mfg'd in 1987???
Would you not agree that any full syn oil is so far advanced, from what was available in 1987, that it is only important to get the correct weight-- manufacturer is a non-issue?? For all we know, the owner babies the vehicle!
Originally Posted By: NHHEMI
Originally Posted By: Turbo
Hello to everyone here on this great forum. I need to change the oil in a 87 Buick Grand National. The owner prefers full synthetic over dino oil to protect against coking in the turbocharger. I will also be adding a bottle of Zddp if necessary. Which Full synthetic oil sold at Autozone would you recommend and why. Thank you for the advice.
For that sweet ride I would not go with a regular oil from the local parts store. I would go with a premium synthetic in the correct weight. If it were me I would use the following...
1 - Royal Purple HPS
2 - Amsoil SSO
3 - Schaeffers 9000
4 - Redline
5 - Brad Penn
I wouldn't run a API SM/SN oil in it.
Would you not agree that any full syn oil is so far advanced, from what was available in 1987, that it is only important to get the correct weight-- manufacturer is a non-issue?? For all we know, the owner babies the vehicle!
Originally Posted By: NHHEMI
Originally Posted By: Turbo
Hello to everyone here on this great forum. I need to change the oil in a 87 Buick Grand National. The owner prefers full synthetic over dino oil to protect against coking in the turbocharger. I will also be adding a bottle of Zddp if necessary. Which Full synthetic oil sold at Autozone would you recommend and why. Thank you for the advice.
For that sweet ride I would not go with a regular oil from the local parts store. I would go with a premium synthetic in the correct weight. If it were me I would use the following...
1 - Royal Purple HPS
2 - Amsoil SSO
3 - Schaeffers 9000
4 - Redline
5 - Brad Penn
I wouldn't run a API SM/SN oil in it.
I would go for Rotella T6!
no idea, but that is the fastest car I've ever been in
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