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Can I use Auto-Rx with Shell Helix Ultra 5w-40? I recall reading somewhere that Auto-Rx works with Schaeffer Supreme, even though the latter contains some synthetic content, which is a No-no with Auto-Rx. Incidentally, the Auto-Rx treatment is destined for the fiancee's 2002 Toyota Celica...

I read somewhere that Bird Poo is damaging to a car's paintwork. Because of this, one should wash it off quick if it gets on a car. Is this true?

Looks like we have a heatwave on our hands, brothers. What's your pick for the best oil to use in this Torrid weather? Me, I like Castrol HD-30 monograde, Chevron Delo 400 15w-40, Castrol GTX 20w-50 dino, Schaeffer Supreme 7000 20w-50 blend.

Anybody out there know what is the best motor oil for a Ducati Monster V-Twin (Air-cooled)? It will be used in extreme hot weather. This V-Twin motor gets extremely hot in heavy traffic. Hot enough to be extremely uncomfortable for my feet! I was thinking in terms of something like Castrol GTX...

Too Darn Right, Bill. Most Syn's are not worth it. For me, it came down to paying $4+ per quart for Syn and getting 11 ppm Fe in my UOA, versus paying 49 cents a quart for Dino and getting 2 to 4 ppm Fe. The decision was an easy one. Besides, I've been using GTX dino for donkey's years, and...

I want to try some new SM-spec Castrol GTX 5W-30. Bought it cheap at Kragen's. But folks here in BITOG tell me that the new SM oils lack Zinc and other camshaft/valve train protection goodies, and also, the 5W-30 stuff will shear down to a 20-weight after 1500+ miles. Should I add a bottle of...

Is there an endemic problem with the Air-Conditioners in 2002-2003 Toyota Celica's? After a couple of years, the air conditioners just quit. Heard of many such cases. Anybody know what's the Scoop? Is it the electrical wiring (relay switch), or is it the A/C Compressor? Appreciate your comments...

My Suzuki Sidekick has had a weak Rear Main Seal ever since it came out of the showroom in 1/1999. But the leak was never bad enough to be a problem......it was more like a "weep" than a full-blown leak. Recently, it got worse to the point that my driveway was starting to look Ugly. Dealer...

Miles on oil: 4437 Miles on vehicle: 51,093 Year Vehicle: 1999 Al 2 Cr 0 Fe 5 Cu 4 Pb 3 Sn 1 Mo 7 Ni 0 Mn 0 Ag 0 Ti 0 K 3 Bo 3 Si 4 Na 2 Ca 3379 Mg 10 Phosphorus 1277 Zn 1535 Ba 0 Viscosity, SUS 73.4 Flash 390 Fuel 0.8 Antifreeze 0 Water 0 Insolubles 0.3 TBN 5.0 Comments: This oil was kept...

I lived in some pretty tough neighborhoods where the people stole cars for sport. And they looked upon jail as some kind of Club Med vacation paradise. Nothing will deter the really Hard-Core type individual. Even the Cops pretended not to see what was going on. "Not worth it," the Cops would say.

High wear metals in UOA, my friend.

I am looking over the data sheets provided on the Chevron website, and I must say the Chevron Delo Synthetic 0w-30 impresses the h*** out of me. Viscosity, cold crank deg C/poise of -30/27.8. Viscosity Index 190. Flash point 419 F. Pour point -76 F. Base #, 10. The Dino Delo 10w-30 ain't too...

First column of numbers is universal averages, 2nd column is last year's service, 3rd column is latest service. Vehicle has 47,000 miles on the clock. oil: ______, Castrol GTX 10w-40, Chevron Delo 15w-40 miles on oil: ______, 3,173, 3,989 miles on unit: ______, 42,667, 46,656 sample date...

Thanks to BITOG and all the knowledgeable and helpful guys 'n gals in it, I finally found out what the colorful and curvaceous automotive batteries in COSTCO are. They are the newfangled Optima's. Well, yesterday, I went to COSTCO to check out the same Optima's, and the helpful guy there told me...

I use Moly in the Redline MT-90 in my Suzuki Sidekick '98 manual trans and 4WD transfer case. I found Redline MT-90 by itself did not make for slick gearchanges. With Moly added (Shaeffer Moly E.P. additive), the gearchange is better and slicker than fresh off the dealer's lot in January 1999...

Heard from a very reliable source, Ferrari, like Honda, uses the dreaded, cardboard construction, FRAM oil filter. I just wonder, how many Ferrari's have had problems because of bits of cardboard getting stuck in their crankshaft Big Ends and shutting off oil flow to same. Incidentally, I was a...

Hmmmm, in a world of Fancy, Space-Age Big-Dollar Seeen--theteeque Motor Oil, it looks like plain old dead Dinosaur Juice can still compete. Lab: Blackstone Equipment make: Suzuki Equipment model: 1.8 L 16-Valve DOHC Equipment miles: 42,667 Fuel type: Gas (unleaded) Oil use interval: 3,173...

Fellers, anybody know the HT/HS number of Chevron Delo 15w-40? Since it is an extended drain type, I guess it must be more than 3.5, but I am not sure. Thanks in advance.

After 25 years, I finally gather up enough courage to change old habits. For the 1st time, a non-Castrol dino product is poured into my sump. The new oil? Chevron Delo 400 15w-40 mineral. The car feels like it runs better already. Probably a superior base stock in the Chevron oil. If everything...

In my family, we had a Toyota Celica from 1975-1979 approx., we only changed the oil when we felt like it. I cannot even say if the oil changes were frequent or infrequent. But more likely, it was....very infrequent! But the thing ran like a Rolex watch. Handed down to Cousin Vinnie, it is still...