redline always seems to show elevated Iron levels.Some say Redline uses a mineral additive that has iron in it but teh formulation ius poropritory.qship96 wrote:Iron,lead,and copper are slightly elevated compared to my results with mobil 1 on a PPM/mile scale,tbn looks good for 8,000 miles-silicon{dirt} looks good-are you using factory air/oil filters?I wonder if some of the differences are due to any differences in the 4.1 to 4.5 liter versions?overall seems to be a good result.I am going to get another analysis on this batch of mobil,then refill with redline once again to compare the 2 oils-my gut so far tells me the mobil performs equal to the redline if not better{as far as tests show}for 5-6000 mile changes.some feel redline protects better,even though its wear numbers are elevated in tests.
I found the Beligian Syntec 5w-40 today at autozone and the german Syntec can be found usually at autozones too.qship96 wrote:Fred,is it as difficult to find on the shelf as the german ow-30? p.s. hear they are now also making the 0w-30 in the USA,different from the german{great} one-must look carefully at the label!
The probelm is (especilaly when doing a TBN) that they may not always use the EXACT type of oil..... meaning that the syntec 0w30 may or may not be the german stuff...PalmerWMD wrote:I want to see someone run the new Belgian castrol Syntec 5w-40.
After Castrol fixed its 0w-30 grasde with the importation of german SLX 0w-30 an excelent oil maybe they'll do it again with this Belgian 5w-40.
Looks like the entire range of Castril is ebing replaced with better product away from group III sold for group IV prices.
The Belgian 5w-40 Syntec is said to be at least group IV.
Fred..
Very little freway miles, 1 road trip to Vegas, but mostly L.A. city. I use an Amsoil filter (sdf13 IIRC) and factory air which was replaced last summer. They said the TBN numbers they get are generally a little below what some one else might show. They charge 20 bucks, that includes everything above. IMO, I'm happy with what I see. The lady said I should have left my oil in the car and just put a new filter on.PalmerWMD wrote:TBN is still acceptable IMO has some reserve left but not gobs of reserve.
The oil thicked up to a 40 weight though.Tells me some oxidation of the base oil has been taking place.
Overall a very good result. lots of ZDDP left too ( AMSOIL kick a$$ in that dept even though its costs them their API certification).
Did you do mostly highway?
Fred..
Wes its says on the back of the bottle which kind it is.elwesso wrote:
The probelm is (especilaly when doing a TBN) that they may not always use the EXACT type of oil..... meaning that the syntec 0w30 may or may not be the german stuff....
They are talking about the HT/HS value not viscosity.Falkdesigns wrote:
As for the oil thickening up to a 40 weight, they say (both Amsoil and Redline) on the bottle that it's comprable to a higher weight dino-oil.
I understand, but im saying the oil they may compare it to may not be the exact one you get.. They may just grab any 0w30 castrol syntec and make sure its not the german stuff.........PalmerWMD wrote:Wes its says on the back of the bottle which kind it is.
Fred..
I agree.. I take comfort knowing that my engine has had synthetic all since Fred had it and since Ive had it as well..... SHould live a nice full (and hard driven) lifeQ45tech wrote:Then a Q [older one] is NEW the bearings are really really tight. Why we can get 300,000 miles with excellant new oil change habits.
By 200,000 miles [100,000 mile with bad habits] they are like a US V8 with 50-60,000 miles. After 200,000 miles the ring wear allows blowby and the oil needs changing more frequently..........gets black quicker.
I have gone back from Mobil 1 to conventional and now change every 4,000 miles with MOA [due to my 6 week interval]. At 279,000 miles things are loose [bearings, rings, chains, cams, wrist pins]. She is on borrowed time after 15 years...........who knows when something will finally let go from accumulated stress. Still not using much oil [< a quart] but double what the Mobil 1 allowed.
What you did early matters most.