Question about 2005 Nissan 350Z

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2005 350 z mineral oil or synthetic what is best-30k miles have been using mineral but may switch if syn oil is better

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It really does not mater it is all about what you prefer, but both will get the job done.

Posted on Apr 11, 2011

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Is 10W40 full synthetic oil the same as 10W40 mineral oil ? and can i switch from mineral to synthetic on my Daewoo nubira 1997?


No they are not the same. But you can switch. If you have high miles, I would add some oil treatment also. I use lucas.

Mar 13, 2016 | Daewoo Cars & Trucks

Tip

Which Oil Should I Use?


A common question is 'Which oil should I use?'

There's three categories of engine oil:
  1. Fully synthetic
  2. Semi synthetic
  3. Mineral
As a general rule of thumb, fully synthetic is the best - and the most expensive.
Semi synthetic is a blend of synthetic and mineral oil, and mineral oil is lifted out a hole in the ground in a bucket.

Oil is also given a rating of 0-30W and 5-40W. There's others, of course. This rating just refers to the viscosity - the thickness of the oil under certain conditions. 0-30W is a thinner oil than 5-40W.

At one time people used to use a thicker oil in their car engine during the winter months and a thinner oil during the summer months.

Fully synthetic 0-30W oil is often specified for engines that have 'zero tolerance'. Here, zero tolerance simply means no space between the metal of the piston and the cylinder wall. The oil must be thin enough to be able to coat the mating metal surfaces and yet be robust enough to withstand the pressures of what is basically pressurised metal to metal contact.

Using semi synthetic oil in a zero-tolerance engine will cause very rapid wear indeed. Topping up a zero-tolerance engine with mineral oil can have catastrophic results. Not only does it not afford protection but it - the mineral oil - will form a 'globule' - a ball - inside the oil sump/pan that will block the oil pump pick-up with absolute catastrophic results - very quickly.

In Europe the Saab 9-5 model had, amongst others, a V8 3000c diesel engine fitted. It was a zero-tolerance engine. Many of these cars ended up with wrecked engines simply because owners had topped up with the wrong oil. And, on a zero-tolerance engine the oil level itself is critical so much so that Saab modified the oil dipstick so that owners overfilled with oil by 1 litre. A zero-tolerance engine doesn't tolerate a 'slightly lower' oil level.

Most drivers wouldn't know if their car was a zero-tolerance engine. If you use fully synthetic 0-30W (or follow the manufacturer's recommendation) you won't go far wrong. You can use fully synthetic 0-30W in your 1956 Cadillac if you wish. It won't harm it.

Other grades of fully synthetic are fully suitable for all non-zero tolerance engines.

The difference between fully synthetic (apart from the price) and semi synthetic and mineral is that of durability. Fully synthetic 'breaks down' slower .. in other words, it lasts longer as a 'lubricant' ... does its job better.

Short journeys destroy engine oil - particularly mineral oil. Toxins and carbons accumulate in the oil and cause it to break down into 'sludge'. Semi synthetic oil is more resistant to breaking down, and fully synthetic is even better.

If you've got a decent car with a decent engine - use fully synthetic 0-30W. If it isn't a 'zero-tolerance' engine use any fully synthetic oil or semi synthetic oil.

If you have an old 1998 4 litre Jeep that burns oil like I have, a cheap mineral oil will do. But do change the oil and filter regularly. Regular oil/filter changes promotes the life of your engine - irrespective of what car you drive - and it really does prevent mechanical problems such as noisy camshafts/engine knocks.

on Nov 06, 2015 | Cars & Trucks

1 Answer

Why do 2015 Toyota 4 runners have to use sinthetic oil opposed to the 2013 models


synthetic oils maintain a fairly constant viscosity through out the operation heat range , where as mineral oils change viscosity as the engine gets hotter ( synthetic oils 20 w and minerals 15w-40 )
It could be a manufacturer requirement to maintain warranty but it is generally accepted that mineral oils and synthetic oils have small differences in the life of an engine
Talk with an oil manufacturer such as castrol, shell etc and with your service dealer to get a better understanding of the requirement

Aug 28, 2015 | Toyota Cars & Trucks

2 Answers

Why when the book says 10,000 miles between synthetic oil changes does the oil change light come on at 5,000?


Hi Sandra, The oil service light in the vehicle has been preset at the factory to 5000 intervals for use with mineral oils. The engine does not know the difference between the oils. Ask your service center if the warning is adjustable for use with synthetic oil. There is no problem (except financial) in changing the oil every 5000 instead of ten, in fact it will help maintain the engine in better condition. Best regards John

Jul 18, 2012 | 2010 Lexus HS 250h

1 Answer

What is the best oil to use in a 2001 lincoln navigator


There is no best

You use the brand you prefer

You use the type you prefer
e.g mineral,semi syn or full synthetic

What you may be asking is,what grade or weight oil?
It should be in your owners manual,on the oil fill cap,
etc

Most Fords use 5W-20 ,yours may use 5W-30.

I would use Mobil 1 5W-30 ,if 30 is correct
Avail at wal-mart and expensive

Jan 28, 2011 | 2001 Lincoln Navigator

2 Answers

OIl, synthetic or regular, what's the difference?


Synthetic oil won't break down as quickly as conventional oil, gives better protection and longer life. Excellent product, I Strongly suggested for those out there who forget to do their oil changes regularly or courier/ work vehicles.
Heres the link to an explaination from Castrol
http://www.castrol.com/castrol/genericarticle.do?categoryId=8264018&contentId=6003233
I use conventional Oil in my jimmy with 5% of Lucas engine oil treatment and service the engine every 3,000 miles. I find it to costly for the Synthetic oil every 3,000 miles, and as for the high mileage oil you can buy. The high mileage oil has a higher fluid retention like adding Lucas engine oil treatment to any conventional oil, so you decide on what type of oil you like to use in your engine.
Good luck and hope this helps.

Mar 07, 2010 | 2004 Toyota Tundra

2 Answers

Wondering what is the best type of oil to use for a 2009 toyota camry? Synthetic vs. other??


well synthetic is with out a doubt the best,,,,ive seen car run regular oil for 50k miles and it was changed every 3000 miles and the inside of the engines were clean but brown inside from sludge and build up,ive seen the same thing where oil was changed every 6000 with reg oil and the engines are black inside,,and ive seen engine that run synthetic oil and they look almost new inside,the difference is clear that syn oil is far better,,but just remember your engine stays cleaner with syn oil but it does so because the oil picks up more dirt and lubricates better,,,so dont forget to change the oil filter cause now even more dirt will be getting trapped in it,beacuse of the better cleaning properties of the syn oil,,,,almost any syn oil is good,but MOBIL 1,AMSOIL are the best,,,,,they cost more but well worth it due to lack of engine repairs,,,i would still change oil every 4000 or so

Oct 13, 2009 | 2009 Toyota Camry

2 Answers

2002 honda civic LX oil change


A synthetic is good if you don't mind going 15 to 20,000 miles between changes. If you're one of the compulsives that change oil every 3000 or 5000 miles, don't bother with synthetics, because they're expensive. You probly need a thinner grade of oil, tho, like a 5-20. Thinner grades will help your gas mileage, but check your manual.

Sep 29, 2009 | 2002 Honda Civic

1 Answer

I dont know for sure what the noise is that my 04 ford f-150 is making. After it sets for a while and you crank it... it rattles like a dry start. I have had te cam phasers and lifters replaced aprox. 10K...


Have an oil pressure test done. If you have low pressure, it will take it a while to build up the pressure.

You might want to switch to full synthetic oil. I use it it my primary cars from the moment I buy them. Full Synthetic oil will seat better and protect better when it cools down. It is worth the cost of syn oil to try.

Hope this helps.

Aug 20, 2009 | 2004 Ford F150

2 Answers

Do i have to use synthetic oil on my 2006 lexus ES330?


U do not have to use synthetic oil but I recommend u do if u plan to drive the car for 100,000 miles or more, syn oil almost eliminates engine wear, if u use it change the oil and filter every 5,000 miles

Jan 24, 2009 | 2006 Lexus Es 330

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