![]() I think you're right that synthetic doesn't clean an engine that's already dirty. For 80K miles on Dino my 00 Century looked like a mess to me. My bet is had synthetic oil been used the entire 272k+ miles the engine would be a lot cleaner. I've seen HM engines here a lot cleaner, that's all I'm saying. ^^My point is 28K of synthetic oil and little to no cleaning at all. This picture is taken without flash and things look a little better. I figured since the valvetrain wear is so low, they hardly change in a few 10k miles. I didn't bother to adjust the valve clearances (through the screws in the picture) this time, as it has to be done with a hot engine. Note that these are sliding, not roller, rocker arms. I don't think I have any valvetrain problems so, the varnish doesn't seem to affect anything. I don't see any sludge and the cam lobes look in excellent shape. I have some pictures when I was using 15W-40 and they look similar. Nevertheless, the last five synthetic OCIs seem to have made a little or no difference. Also, until in 1988, the oil available used only the 1979 API SF or SF/CC technology, with the API CC being the 1961 technology. Previously, it was all dino, such as 10W-30, 10W-40, and 15W-40. I ran synthetic only in the last 28,000 miles - four OCIs of a little under 6,000 miles each with TGMO 0W-20 and one with M1 0W-40. Honestly, if my engine had 272,000 miles on it I would expect some varnish.Yep, doesn't look that bad. It looked something like that with just 80K miles on it and no mechanical issues. It reminds me of the 2000 Buick Century I owned getting 3K dino OCI s since new. The oil used prior didn't do much cleaning/if any at all. No disrespect, but I'm not impressed with the visual condition of the valve train. The car effortlessly glides with the engine sounding like a fine musical instrument. I drove for about 100 mi to have the new PAO-based oil work in. #The simpsons pixa club full#The XG3600 installed with ample clearance.ĭino (well, Group III) TGMO 0W-20 SN and the tiny M1-103 semisynthetic filter (9.1 oz?) are out, PAO Mobil 1 Extended Performance 0W-20 SN PLUS and Fram Ultra XG3600 full synthetic (19.0 oz) are in. It took forever (10 seconds or more?) for the 19.0 oz XG3600 to prime and the oil light to go off - I was about to turn off the engine. To my delight, it came in a nice vintage-style box (see the pics). I replaced the air filter with Toyota OEM Made in Japan. Old spark plugs were in good condition - no sign of oil burning and minimal wear. I replaced the spark plugs with OEM U-groove Nippondenso W16EXR-U11 after regapping them to the 1.1 mm spec. I put Permatex Ultra Grey on the corners as usual. I first tightened the nuts to 10 lbfâ‹…ft and then realized that it was too tight and then reset them to 4 lbfâ‹…ft. I like the soft brass case on the Fel-Pro washers that should help not loosen. Incredibly, even to my surprise, no oil had got on the timing belt. Somehow the nuts had got loose, probably because the OEM washers were too hard. desc : *** The IP addresses under this Org-ID are in use by Google Cloud customers ***,Direct all copyright and legal complaints to, all spam and abuse complaints to, fastest response, use the relevant forms above.,Complaints can also be sent to the GC Abuse desk,( ),but may have longer turnaround times.,*** The IP addresses under this Org-ID are in use by Google Cloud customers ***,Direct all copyright and legal complaints to, all spam and abuse complaints to, fastest response, use the relevant forms above.,Complaints can also be sent to the GC Abuse desk,( ),but may have longer turnaround times.,Complaints sent to any other POC will be ignored.I replaced the leaking Toyota OEM valve-cover gasket set with Fel-Pro.Registrar Abuse Contact Phone: 1.8009480741.Registrar Domain ID: 67367407_DOMAIN_COM-VRSN.Domain expires: 0 Years, 218 Days left. ![]()
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