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Hi from Oamaru New Zealand. When running take a whiff at rear of exhaust emission. If normal diesel combustion then it's fine. If it's a Putrid white hazey smoke which U cannot bare to be there long it could be a leak of coolant into combustion chamber which says head gasket is possibly...

No, I'm only a user. I do use Penrite when I'm really desperate. I started using Amsoil in very early 1980's after being using it for a while then became one of the first to use Mobil 1 then later Delvac 1. This was Mobils attempt to take on Amsoil which they then claim it's guaranteed to be...

Amsoil is a totally different makeup which also has a large additive package which it's around 6 times more protection than other brands. Its the first ever synthetic hydrocarbon ever developed based on synthetic jet turbine oil used in 1960's North America. The founder of Amsoil took that then...

Hi. Greetings from Oamaru Sth island New Zealand. My vehicle is 2012 Spanish built Nissan Navara D40 St-X Diesel. U may need to check head gasket as it's possibly theres a leak into combustion chamber. Its common these fail at 160.000 km if coolant ain't replaced on time. This decarbonizing...

Hi. Amsoil Signature series diesel engine oil will literally out perform all those brands and others you mentioned. If u want you can ask Amsoil to help U set up in Australia. Ask Wayne Hill here at Synthetic oil New Zealand too...

Hi. Spanish 2012 D40 head gasket. Who would be best source of genuine Nissan gaskets?. Nissan says 4 months. Has anyone used Chinese made gaskets?. Cheers Carl

Amsoil EA is your best filter in the industry at 25.000 miles chain intervals not 10.000 k.m price is cheaper too.

My last one was Mahle which cost me heaps.

Amsoil EA filter is the absolute best then with Amsoil Signature series diesel oil as this filter will match and last the life of the 25.000 mile oil and which is the first and only 100% true synthetic. The wear package is the absolute best in the industry. These engines are very near old...

Best oil is Amsoil Signature series diesel oil which is the first and only 100 % true synthetic. The wear package is the absolute best in the industry. These engines are very near old technology with very high metal to metal wear ratio parts (cams) which a ultra quality anti wear package oil is...

That viscosity is fine if you are in very very hot dry environments but not recommended if your engine is still tite and not using oil. Best oil is Amsoil Signature series diesel oil which is the first and only 100 true synthetic. The wear package is the absolute best in the industry. These...

Thanks. I will change.

Hello. In process of head gasket replacement on my 2012 Spanish Nissan Navara D40 St-X Diesel. Can head bolts be reused?. Cheers Carl

Thank you Tony. Yes I'm taking off as is, then replacing as is. All cams will be set in position and marked too. Form Oamaru New Zealand I wish you a Happy weekend.

Hello. 2012 Spanish Nissan Navara D40. In regards to crank and cam position do I set this at top dead centre prior to removing and replacing head?. Cheers Carl

2012 Spanish Nissan Navara D40 St-X . 165.00 K.m Do I need to change head bolts or can I reuse?. Also do I need to change stem seals and lap valves. I'm reluctant as vehicle could had run way higher miles without stem seal change and valve lap if gasket ain't leaked into combustion chamber.

Start dropping tank the check fuel pickup intake strainer for debris. It's a 4 hr job.

Hi. I just Burrowed In further and found a really hard rubbery to the touch coating in manifold after removing turbocharger. This I think is baked on coolant. I'm now thinking a possibility of head gasket leak into combustion chamber. It's strange no coolant in oil. So it looks like i sussed it...

White haze putrid fumes. Engine idles for 2 minutes then dies or it dies after giving few revs. Is this turbo fault?. Coolant all fine and compression test all at 340p.s.i

Hello. Can anyone give me idea where the cam position sensor is located on the 2012 Nissan Navara D40 please?. Cheers Carl