Let's talk oil

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

idahovette

Full Access Member
Joined
Aug 7, 2016
Posts
7,354
Reaction score
16,098
Location
Weiser Idaho
First Name
Perry
Truck Year
1975-1979
Truck Model
K20-K10
Engine Size
350
So, the more is better theory does not apply here?
 

Rusty Nail

Full Access Member
Joined
Jan 29, 2015
Posts
10,041
Reaction score
10,138
Location
the other side of the internet
First Name
Rusty
Truck Year
1977
Truck Model
C20
Engine Size
350sbc
Zinc is acidic. All that jazz about adding zinc is complete and total hogwash and is A detriment past break in. But don't take my word for it...
ASK GM.

P.T. Barnum said it best.
 

Rusty Nail

Full Access Member
Joined
Jan 29, 2015
Posts
10,041
Reaction score
10,138
Location
the other side of the internet
First Name
Rusty
Truck Year
1977
Truck Model
C20
Engine Size
350sbc
It's no different than me telling you that marijuana will cure all that ails you. It's a new discovery. All you need is to buy CBD oil and rub it where it hurts. Or smoke the pot and it will cure EVERYTHING.We should legalize it.

When in reality, it is a toxic chemical that will kill you and causes permanent neurological damage.

All you gotta do is add a little bit of ZDDP and your forty year old engine will last forever!
Smoking marijuana will cure arthritis and end depression!

Shop.Spend.Consume.
Pay no attention to that man behind the curtain!
Will that be cash or credit?

xc_hide_links_from_guests_guests_error_hide_media
 

Dan Brown

Full Access Member
Joined
Nov 4, 2017
Posts
64
Reaction score
29
Location
Katy, Texas
First Name
Dan
Truck Year
1974
Truck Model
K10
Engine Size
355 (.030 over 350)
I've used nothing but Wal Mart oil for years and never had a problem. I understand it's made by Warren Performance Products, which bought Quaker State. I change my oil and filter every 3000 miles, which is probably ridiculous, but always have. I used Wal Mart filters, too, until I found them cheaper at Rock Auto. Makes it easy as both my cars use the same filter. If the oil you use has the API symbol on it, it's good. Too, Home Depot occasionally puts Shell oil on sale for $9.97 for a five quart jug. Wal Mart is just below 12 bucks for five quarts, so I stock up on the Shell when it's on sale.

Another thing, don't worry about what the manual says for the weight for you car oil. They want you to believe that using the thinner oils gives you better mileage as it's easier to pump. Maybe, but so what, you may pick up 1/2 to 1 MPG. If your manual say 5W-20, it won't hurt anything to use 10W-20 or even 10W-30. I do, and it hasn't hurt anything. I've even talked to the dealer about it, and they say it's okay. Learn what those numbers mean, and you'll understand a bit better.

You diesel owners, Wal Mart also sells a 15w-40 heavy duty diesel oil. Probably made by the same company as their regular motor oil, but much cheaper than Rotella, or the other high dollar diesels oils.
 

WHEELMAN

Full Access Member
Joined
Aug 9, 2011
Posts
136
Reaction score
11
Location
HICKORY TAVERN SC
First Name
BILL
Truck Year
1986
Truck Model
C10
Engine Size
454 v8
It's not rocket science..two things kill oil

Heat and dirt.if you race or do hard use.or you do not change the filter.say every two thousand miles.

You notice the vehicle still comes with just one engine filter.not two or three.they want the engines to go out.

Because of oil.kill the warenty.in the old days we used 10/40.some people.the old guys.used 30 weight.big block engines

As the people got dumer and more complained about lifter noise.on cold winter mornings

They switched to 5/30 ..the engines.the last place to get oil.is the heads.oil gets hot.some burns.and it gets in to your filter

When they changed the engine design up.years ago.they went from pressure too volume.

Flow.i went to look at a car one time.for sale.it was making a noise.engine was gone.the stupid man said.i don't know why it's doing that

I used. Snythic.like royal purple or something.i just laughed.all oil and filter has to be changed.

No matter what the oil.or what you pay for it.all those oil change places.use recycled oil.as far as I know.its cleaned and additives are added back to the oil

I like 10/40 and even 20/50 .good oil if you run a strong.horse power engine.that lukcus oil treatment

Sounds Sood.but have not used it.
 

CSFJ

-----------------
Supporting Member
Joined
Jul 1, 2014
Posts
6,160
Reaction score
5,171
Location
------
First Name
-------------
Truck Year
-------
Truck Model
-------
Engine Size
-------
It's not rocket science..two things kill oil

Heat and dirt.if you race or do hard use.or you do not change the filter.say every two thousand miles.

You notice the vehicle still comes with just one engine filter.not two or three.they want the engines to go out.

Because of oil.kill the warenty.in the old days we used 10/40.some people.the old guys.used 30 weight.big block engines

As the people got dumer and more complained about lifter noise.on cold winter mornings

They switched to 5/30 ..the engines.the last place to get oil.is the heads.oil gets hot.some burns.and it gets in to your filter

When they changed the engine design up.years ago.they went from pressure too volume.

Flow.i went to look at a car one time.for sale.it was making a noise.engine was gone.the stupid man said.i don't know why it's doing that

I used. Snythic.like royal purple or something.i just laughed.all oil and filter has to be changed.

No matter what the oil.or what you pay for it.all those oil change places.use recycled oil.as far as I know.its cleaned and additives are added back to the oil

I like 10/40 and even 20/50 .good oil if you run a strong.horse power engine.that lukcus oil treatment

Sounds Sood.but have not used it.
Were you dropped on your head as a child?
 

MikeB

Full Access Member
Joined
Apr 4, 2014
Posts
1,782
Reaction score
1,020
Location
North Texas
First Name
Mike
Truck Year
1969
Truck Model
C10
Engine Size
355
If your engine has a flat tappet cam, using an oil with high levels of ZDDP (zinc and phosphorus) is a good idea. However, I've seen Chevy 350s with stock or mild cams and valve springs run for >10 years using whatever name-brand oil is on sale. I personally prefer something like 10W-30 Valvoline Racing oil with a high level of ZDDP. But don't use the bottle labeled "Not Street legal", because that oil is meant for only a few hundred miles of use (has little to no detergents, as I recall).

https://www.summitracing.com/parts/vlv-vv205-6
You must be registered for see images attach


Another decent solution for mild cams and valve springs is Mobil 1 5W-30, 10W-30, and 5W-20 which have a higher ZDDP content than most conventional oils. And their 20W-50 is higher still. I got this info from a Mobil 1 chart awhile back.

Finally, I stay away from additives after initial break-in, because I'm not a petrochemical engineer and have no idea how a 3rd party additive will combine with an oil's existing additive package.
 

JD1973

Junior Member
Joined
Oct 4, 2017
Posts
20
Reaction score
9
Location
AZ
First Name
Jonathan
Truck Year
1973
Truck Model
Chevy 1/2 stepside
Engine Size
383


BPEN-20W50-12 Brad Penn Penn Grade 1 20W50 Partially Synthetic Motor Oil

cost a bit more, But I have never had a failure due to oil.
 

norman baker

Member
Joined
Dec 2, 2018
Posts
45
Reaction score
12
Location
ellijay,ga
First Name
norman
Truck Year
1976,1981,1982,1984 1985
Truck Model
k20 ,c10 ,c10,c20, c10
Engine Size
none, 250 ,305, 454, 305, 454 ,
i run delo 15-40 winter 15-50 summer in my 1981 custom deluxe 250 inline 90 k miles . mobile 1 5-20 in both 2011 rav4 2.5 l awd 95k miles,and 2007 highlander hybrid 3.0 l v6 125k miles , 85 silverado 305 delo 15-40 winter and summer 312k miles, same in 76 k20 miles?? 350 . same in 1982 custom deluxe 305 ,3 speed over drive . also 15-40 delo in my 177 6 vw automatic trike, and my vtwin conversion diesel kawasaki mule 4010. and my 1980 yamaha xs650 9k mile s . log splliter, motorhome 454 , and generator . yup i like delo 15-40
 

norman baker

Member
Joined
Dec 2, 2018
Posts
45
Reaction score
12
Location
ellijay,ga
First Name
norman
Truck Year
1976,1981,1982,1984 1985
Truck Model
k20 ,c10 ,c10,c20, c10
Engine Size
none, 250 ,305, 454, 305, 454 ,
i found a 1964 international 1800 awd huge 6 cylinder 4 speed with tandem rears 900 x20 pto 31,000 , thinking about putting a rollback bed and stinger to bring my cars or pick up new ones, ps it is square . lol
 

68post

very, VERY, limited access member
Joined
Feb 20, 2014
Posts
281
Reaction score
97
Location
Indianapolis
First Name
Tim
Truck Year
1984
Truck Model
84 K30 SRW Silverado, 85 C20 C6P
Engine Size
454, TBD
Use this REAL additive and you can use any off the shelf oil you'd like,
https://www.amazon.com/dp/B002C6E0V...olid=1READJHQJE4XJ&psc=0&ref_=lv_ov_lig_dp_it

I like to add a tiny bit of Moly, but you'd only want/& need a very small amount of zinc to be present.

The lubrication technology this is made from has been proven, and you can even drop down to a lighter viscosity and still have greater film strength.
 

73c20jim

Full Access Member
Joined
Jun 11, 2018
Posts
2,282
Reaction score
2,926
Location
Tombstone, AZ
First Name
Jim
Truck Year
1973, 1973
Truck Model
C20 2WD Custom Deluxe. C10 2WD Base Model
Engine Size
350 CID 195/260 HP Goodwrench crate, 400 CID 2bbl
Just went for a free oil change a Chevy dealer. The only oil they use is full synthetic made by Mobil1.
 

Hatchet54

Full Access Member
Joined
Oct 23, 2018
Posts
276
Reaction score
251
Location
Wyoming
First Name
Red
Truck Year
1977
Truck Model
1500 Sierra Grande
Engine Size
350
Use this REAL additive and you can use any off the shelf oil you'd like,
https://www.amazon.com/dp/B002C6E0V...olid=1READJHQJE4XJ&psc=0&ref_=lv_ov_lig_dp_it

I like to add a tiny bit of Moly, but you'd only want/& need a very small amount of zinc to be present.

The lubrication technology this is made from has been proven, and you can even drop down to a lighter viscosity and still have greater film strength.

That stuff has me intrigued, especially reading the reviews. Never heard of it before
 

Hatchet54

Full Access Member
Joined
Oct 23, 2018
Posts
276
Reaction score
251
Location
Wyoming
First Name
Red
Truck Year
1977
Truck Model
1500 Sierra Grande
Engine Size
350
Were you dropped on your head as a child?

I have a feeling he was using the "speech to text" without proof-reading...
At least, I hope that's what it is.
 

Forum statistics

Threads
44,416
Posts
957,140
Members
36,755
Latest member
square-up
Top