engine and drivetrain Engine oil

[Dogpile]

I have read older posts on this topic and gained knowledge but I still have a question.

71, mostly stock (msd ign, header, ansa exhaust)

No leaks

Everyday driver, when sunny, normally >65f

I drive it pretty hard but no track day type situations.

Oils I'm considering

Royal purple verses valvoline Vr1 ( both have Zdd)

Viscosity

10-30, 10-40, 20-50

Help me experts..

Thanks

[Hans]

20-50 for summer. Some folks will tell you synthetics aren't compatible with the seals.

[John_in_VA]

When I was in Knoxville with a 2002 daily driver I used 20W-50 summer & 10W-40 for the other half of the year.

[jimk]

Some folks will tell you synthetics aren't compatible with the seals

Those folks rely on rumors of the dark ages.

[zinz]

I run Valvoline VR1, 20w50 

 

Ed

[Simeon]

Not sure if you can get Penrite oils near you but this is what I use. Gets pretty hot here in the summer.

http://www.penriteoil.com.au/products.php?id_categ=1&id_brand=1&id_products=3

Edited August 3, 2015 by Simeon

[M3M3]

don't sweat the question, experts are not needed.  there is no modern oil that is bad for the engine.  just go by what viscosity the manual recommends for your temperature range, change at the suggested intervals and all will be good.

Edited August 3, 2015 by mlytle

[Guest_anonymous]

710

[Mike Self]

20-50 synthetic in my '73 since I rebuilt the engine at 204k.  Now have 249k--no problems with leaking seals or anything else attributable to synthetic oil.  Lengthened my oil change period from 4k to 8k miles.  But I got 204k miles with conventional oil; when we pulled the engine down the crank was within specs for standard bearings, and the cylinders had only .003 thou wear.  

 

Just change the oil and filter frequently and use a good quality oil.

 

mike 

[MikeD]

20-50 Brad Penn

[achman]

Valvoline VR1 20w50 for the Tii

Rotella for the M3

[OriginalOwner]

Ah, the terror of choosing oil.  Me, I've always been a Valvoline conventional-oil kinda guy.

 

Back in the good old days when my '74tii was squeaky clean and I did my very first oil change, I used 30W non-detergent.  If it was good enough for my dad's 1958 Morris Minor, it was good enough for me.  

 

Then 3 years later the future caught up to me, I bowed to it, and switched to 30W detergent.

 

Life was simple until 1997 when I listened to some voice in my head and switched to 20-50W.  Then in 2009 I slid back to 10-40W and been there ever since .....

 

mlytle says it best,  "..... use something appropriate, change it often ....."

 

Cheers,

 

Carl

[Dogpile]

What does 710 mean?

[ifayeoh]

What does 710 mean?

As in, don't forget your 710 cap!

[John_in_VA]