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Oil and oil filter suggestions for '73 620?


Vividfragment

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I use Valvoline VR-1 oil.  It has a high zinc and phosphorus the camshaft and rocker arms need .

I recommend you get part number A5208-43G0A-01 from a Nissan dealer.

 

This is my reasoning on using an OEM oil filters.  New cars are typically serviced at the dealer that sold the car, under warranty.  If there is a catastrophic engine failure because of a bad oil filter, the dealer, and Nissan are paying for a new engine.  That costs the dealer and Nissan thousands of dollars.  That gives Nissan a very strong incentive to make sure the oil filters are good. 

Aftermarket companies are trying to maximize profits from selling filters.  Their motivation is to make filters that are "good enough", just barely.  Additionally, aftermarket can blame an engine failure on many factors, other than the oil filter. 

 

Do not use Fram filters

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Do not use Fram filters

 

Fram should pay people the cost of replacing their engine ahead of time....

For many years I used Fram filters, with no issues until the mid-'90s when I put one on a high performance engine.

Filter collapsed, sending debris into every critical point in the first 2-3 days.

About that time, I searched the 'net for info, and found out that their products had turn to dog dodo.

Never again !

 

Funny thing on oil......

When I had went back to school in the early '80s, I was driving a $50 Vega, that passed oil out the tail pipe quicker than a storm drain.

I was taking other people's drain oil, used cooking oil, even gear oil to keep it running without eating into my meager finances.

It kept chugging away until I finished school........:)

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Fram should pay people the cost of replacing their engine ahead of time....

For many years I used Fram filters, with no issues until the mid-'90s when I put one on a high performance engine.

Filter collapsed, sending debris into every critical point in the first 2-3 days.

About that time, I searched the 'net for info, and found out that their products had turn to dog dodo.

Never again !

 

Funny thing on oil......

When I had went back to school in the early '80s, I was driving a $50 Vega, that passed oil out the tail pipe quicker than a storm drain.

I was taking other people's drain oil, used cooking oil, even gear oil to keep it running without eating into my meager finances.

It kept chugging away until I finished school........:)

...tons of stuff on YouTube about ppl. Showing inferior quality of fram oil filter. Less filter and poor construction.
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Beware most over the counter oils sold today as they have a reduced level of ZDDP an anti scuff additive that used to be used in abundance back before the '90s. It was needed in engines using flat valve lifters. No engines built today use this technology and are all 'roller lifters' and because the zinc is not good for the catalytic converters in the new cars, oil makers have been slowly fazing it out. They say that it's not a problem to use the new formula oils in older cars but I'm not taking the chance.

 

IMG_3958.JPG

 

This might be the result of lower zinc levels. What you should do is look up a discussion on ZDDP on line and decide for yourself.

 

 

What I recommend is a light diesel oil that is exempt from this, and still has the old levels of ZDDP in their formula. 

 

 

Shell Delo 400 or Chevron Rotella T (it may be T4 now) in 15w40. The other day I was getting an oil change on a company truck and there was Rotella in 30W and 10W30.  My car is due for an oil change this year so I might try the 30w.

 

Most 'racing' oils are also good.

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Tis but a scratch.....

A little sand paper, and it will be good to go  :)

Please show the damaged cam ,dust !We used to get rockers off Z car automatics at JY. also maximas any 6 cyls.Getting more scarce now need to check inventory at junk yards or go to desert maybe I E,..
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  • 2 weeks later...

I use Valvoline VR-1 oil.  It has a high zinc and phosphorus the camshaft and rocker arms need .

I recommend you get part number A5208-43G0A-01 from a Nissan dealer.

 

This is my reasoning on using an OEM oil filters.  New cars are typically serviced at the dealer that sold the car, under warranty.  If there is a catastrophic engine failure because of a bad oil filter, the dealer, and Nissan are paying for a new engine.  That costs the dealer and Nissan thousands of dollars.  That gives Nissan a very strong incentive to make sure the oil filters are good. 

Aftermarket companies are trying to maximize profits from selling filters.  Their motivation is to make filters that are "good enough", just barely.  Additionally, aftermarket can blame an engine failure on many factors, other than the oil filter. 

 

Do not use Fram filters

Smart man this is the rite answer

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When an oil filter mounts horizontal it has to have a superior check valve to stay full of oil in order to to offer instant oil pressure to the chain tensioner on an L engine, we would see 250k chain life at our shop with OE oil fillers, 80K with all others. Most oil is OK to use now but I always use BG's MOA and use a non-synthetic and change it every 3,750 miles because it is divisible by your 30-60-90-120k service schedule. I have opened up hundreds of Datsun engines to find them like new inside with over 250k on them using this method. When we raced turbo Kawasaki's we used to change the turbo after every run, when we used the BG-MOA we changed it after 6 runs, worth the price. I get my OE oil filters and MOA on e-bay. The blue oil filters are better than the white and gray OE which are made in the US, when they started making them here the quality went down. If your filter slopes downward or points down it stays full of oil and the filtering quality becomes most important and I don't know which to use. We found the OE air filters superior also.

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I knew the Fram bashing would show up in this thread.I've had 3 Toyota pickups in the last 20 years driven a total of 1.2 million miles.Most of the time they had Fram filters on them.My Datsun has had a Fram filter on it most of the time for 30 years.Never an oil related engine problem.And yes use the diesel rated oils like others have recommended.

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I can tell you that Fram has the lowest burst pressure of any oil filter.  Its a fact I proved a few years ago when I added a plug into an oil return galley (back to the pan) by accident.  It popped 2-3 seconds quicker than Wix, and Purolator outlasted the Wix by another full second or two.  Stupid mistake, but more than one lesson learned.  I like Valvoline VR1.  If oyu get a Wix filter, closely inspect the internal threads.  They're had some serious galling issues the last few years.  Its as though their thread cutting machine no longer uses coolant, or its completely clapped out.  

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