Oil thread

[gotswap]

There is much debate as to what oil to use in the engine but I am looking more specifically at the trans and differential.

What is everyone using? I am fairly set on using 75w90 in the diff due to how it seems to do in my S2000 but what about the transmission?

Probably should have mentioned that I own a 72 240Z, completely stock.

[BRE-240Z]

What is everyone using? I am fairly set on using 75w90 in the diff due to how it seems to do in my S2000 but what about the transmission?

I am using Red Line MTL-90 and have had good success with it.

[sblake01]

I use Lucas synthetic 75W-90 in both trans and diff and have for years so you'll get some debate there also. Plus the Lucas costs less than the Redline and is more readily available.

[Poindexter]

I have been using the Castrol GTX 20w-50 forever, and had found nothing bad to report about it, but after hearing about the cooling effects, and slightly higher gas mileage offered by the synthetics- I researched the Red Line, Royal Purple and Valvoline Racing oils, as well as the Mobil 1 High Mileage, 10W30. I chose Red Line for their gear oils- as I stated in my earlier post in this thread- and I have been extremely happy with the results.

As for engine oil, though, according the the Mobil techs, it has the good old higher levels of ZDDP that our engines need to thrive, and also contains extra "seal conditioners" to deal with the usually larger clearances our older engines have. And they promise it won't cause either leaks to start (unless you still have any cork gaskets or terrible past maintenance habits) nor journals to clog as the interior sludge becomes freed into solution and trapped in the oil filter- major concerns with these older engines.

So I will be switching to it within the week- and keeping a detailed mileage log to track any changes in engine water temp, mileage, and start-up smoke - it looks like the back of Jeff Spicoli's van when I start up- if you know what I mean! :laugh: I will report back on my results.

[the_cafe]

i by my all my oil at da grocery stow

that way i get a discount on my membership card n everybodies happy

[240kconvertible]

i by my all my oil at da grocery stow

that way i get a discount on my membership card n everybodies happy

Can you spell and do you realise that your not texting when on a forum?

Mobil 1 full synthetic is crap, Valvoline in Australia is about to release advertising that states that our full synthetic oils are 4 times more wear resistant than Mobil when using the standard API engine wear test.

[sblake01]

Andrew, this guy is not for real. It's just some type of perverse game that he's been playing ever since he's been on this site. He can spell 'discount' and 'membership' but not 'store'? I think he's just looking for a reaction.

[doradox]

i by my all my oil at da grocery stow

that way i get a discount on my membership card n everybodies happy

Dude, you're right. Everybody IS happy. I woke up feeling really good today. Did you buy some oil recently? Everybody is soooo happy today it's unbelievable.

Steve

[240kconvertible]

Andrew, this guy is not for real. It's just some type of perverse game that he's been playing ever since he's been on this site. He can spell 'discount' and 'membership' but not 'store'? I think he's just looking for a reaction.

Can we start a petition to get him booted

After reading Beandip's comment on Zinc being taken out of oil, I looked into what is in Valvoline's oil and found this little bit of info on one of our handouts regarding Valvoline full syn vs Mobil 1 full syn

" The key to Valvolines anti-wear chemistry is its zinc/phosphorus additive known as ZDDP. Increasingly lower levels of phosphorus in motor oil have been the subject of concern to automotive enthusiasts. Synpower's low volatility ZDDP formulation causes the phosphorus to stay in the oil longer, according to Valvoline Technical director Thom Smith. Phosphorus bonds to metal parts in the engine to form a "sacrificial" layer that helps protect against engine wear, Smith said."

Bear in mind I'm just a branch manager for Valvoline and can only regurgitate what I have read or watched on video. Hope this interests some people

[Diseazd]

Isky Cams includes a flyer with their new reground cams....'Motor Oil Warning" Not all oils are created equal. When installing a high performance camshaft, just any oil will not give your new cam installation sufficient protection during the critical beak-in period (the mating-in of virgin metal surfaces). As of Jan. 04 the gov't has mandated complete elimination of the critical anti-wear additive package (zinc/phosphorus) from all "SM" rated (street legal) motor oils to protect catalytic converters. Isky recommends the following motor oils for max cam lobe and lifter protection before and after break-in period because they are the only conventional mineral based oils available with generous levels of zinc/phosphorous additive package. Brad Penn Penn-Grade I;Pennzoil "GTP" Racing Oil; Valvoline Racing Oil (VR-1). If none are available your GM dealership will have a supplement for your over the counter oils EOS (Engine Oil Supplement) part # 1052367 (16 oz.) bottle to be added to each oil change. EOS contains a generous amount of zinc and phosphorous to bring normal oils up to pre 04 standards. Cost is $9.00 per bottle.

Edited September 4, 2008 by Diseazd

[Walter Moore]

...Bear in mind I'm just a branch manager for Valvoline and can only regurgitate what I have read or watched on video. Hope this interests some people

Thanks for the disclaimer, I will keep it in mind. I have used full synthetic oil in all of my cars for years, and have personally observed the difference in engine wear between synthetic and "normal" oil. I tend to agree that for people who live in very warm climates there may not be much benefit, but here in the great white North there is a difference.

I have owned a lot of cars, and have used both types of oil. I am convinced.

But thanks for your input.

[the_cafe]

i think when it comes down to synthetic oil and you want the best of the best Amsoil can't be beat. don't take this wrong way as this is not a joke (can you believe that), I had a friend literally drive 100,000 miles on Amsoil with only frequent changes of the filter. the truck is still going today with over 200k...