I have been told to use 5w30 because the cam seals may blow out, but in my older 86 Gl ,ea82 with 97 k miles, ive been using "10w 40 summer" "10 w 30 winter", never had a problem, any thoughts would be helpful, thanks in advance

10w40 all the time. If you get quality cam seals they won't blow.

With that mileage I would use 10w-30 or 10w-40.

5W40 full synthetic in the winter. 20W50 snythetic in the summer. It seems to burn alot less if I use that, compared to dino, or 10W30 stuff.

,wd40?

lol... I wouldn't suggest running WD40 in your car.. Oh, and btw, WD40 stands for the 40th try at a good "water dispersant", or somthing like that,.

Take a look in your owner's manual (if you have one). It states that 5W-30 should only be used in cold conditions, and is not recommended for sustained highway speeds.

 

Just an FYI.

 

I run 10W-30 all year. Doesn't blow out my seals at all.

I've always ran 10w30 valvoline in all of my subies, execpt one the 95 wagon 5w-30 for about 300 miles, until i kept seeing the low pressure light in the dash under spirited driving. Changed it immediately, about 1k later it spun a bearing

I use 10-40 in my high mileage (300k) 88 EA-82 all year round.

Using the 10-40 helps with oil consumption compared to the 10-30.

Other than some high idle probs the engine is sound as a pound. Winter and summer!

 

10- 40 goes in the engine.

WD-40 goes in the distributor.

 

I sure hope so anyways!

Just to clarify..... the first number ( the W one) does not mean much to those of us that live in climates where temps dont drop much below freezing. On a 20degC day, a 5W30 will be almost exactly the same as a 10W30 or a 15W30 (well, it should be anyway).

 

So the second number is the more important one, unless you live in a cold climate.

 

If your engine is in good condition, it is generally desireable to use as thin an oil as possible, without the oil pressure dropping too much when the engine heats up.

 

If you have a turbo engine, you'll probably find that your pressure will drop a bit much when using a 30 or even poor quality 40s.

Exactly, most people dont know that the W means Winter not Weight.

I use 10W30 year-round in everything. No real problems, and if anyone cares I generally use Mobil Clean 5000.

i also use 10w30 in all my soobs year round in whatever brand autozone has on sale with their $11 oil change special(5 qts and filter)

$11 oil change special(5 qts and filter)

 

wow thats cheap! If i were to buy a similar oil and filter here i'd be paying more like $25US +++!

 

For good synthetic and filter I pay more like $70US!

I use Motul Minerally Based Oil 20W-50 All the Time, (´cos here in the Tropics the Temps we got are Between 5º C to 35º C ) on Both my Subies and there are no Problem, Works Great!

I run 10W-30 all year. Doesn't blow out my seals at all.

 

Ditto. Run it in my EA81 and EA81T and they don't complain at all.

I'm partial to Castrol straight 30 sae non-detergent.

A carryover from my Corvair days.

 

Wayne

i also use 10w30 in all my soobs year round in whatever brand autozone has on sale with their $11 oil change special(5 qts and filter)

An old school engine builder ckued me on the parrifin content in pennzoil,

And Iv'e seen first hand tearing down engines that ran pennzoil.

It leaves a nasty black deposit on every surface, that's not good.

So there's one brand that should stay on sale until something else is marked

down. Engines i used valvoline or casrol GTX still look clean inside after 100,000 + miles.

I use Motul Minerally Based Oil 20W-50 All the Time, (´cos here in the Tropics the Temps we got are Between 5º C to 35º C ) on Both my Subies and there are no Problem, Works Great!

Never seen any for sale in California, I use valvoline racing oil or Castrol GTX

and have excellent results