JimD Posted November 3, 2005 Report Share Posted November 3, 2005 I think they like it (at least as much as any car rag likes domestic iron). http://www.caranddriver.com/article.asp?se...9&page_number=1 Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
CadiKing Posted November 3, 2005 Report Share Posted November 3, 2005 Not TOO Bad an article Considering the source... What I noticed most was, on the last page, with 10,000 mile oil change intervals, NO ADDITIONAL OIL WAS ADDED! WHAT'S UP WITH THAT????? Link to comment Share on other sites More sharing options...
JimD Posted November 4, 2005 Author Report Share Posted November 4, 2005 May not be unusual on 'newer' engines. Perhaps the pistons and rings have been redesigned, or the valve oil seals have been improved, or a critical gasket or two has been improved, or all of the above. I do know that my '04 engine oil level did not drop at all during 11,200 miles on an oil change. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
parrothead Posted November 4, 2005 Report Share Posted November 4, 2005 My 01 DTS does not use oil at all. ~for every vision there is an equal and opposite revision~ Link to comment Share on other sites More sharing options...
dpsq Posted November 4, 2005 Report Share Posted November 4, 2005 how come the SRX has the 320 hp engine and the DTS does not??? Link to comment Share on other sites More sharing options...
JimD Posted November 4, 2005 Author Report Share Posted November 4, 2005 The rear-wheel-drive version of the engine is a different beast. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
KHE Posted November 4, 2005 Report Share Posted November 4, 2005 how come the SRX has the 320 hp engine and the DTS does not??? Because the SRX has the Northstar for the RWD vehicles that has variable valve timing that gains an additional 20 HP over the FWD version. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
KevinW Posted November 4, 2005 Report Share Posted November 4, 2005 Because the SRX has the Northstar for the RWD vehicles that has variable valve timing that gains an additional 20 HP over the FWD version. I understand that most of the gain is a result of an improved exhaust configuration. This particular VVT setup allows for sufficient 'internal' EGR (without the complication of a control valve and related plumbing), and a smoother idle than the non-VVT high output variant combined with the torque of the non-VVT low output variant. ___________________________________________________ Link to comment Share on other sites More sharing options...
JimD Posted November 4, 2005 Author Report Share Posted November 4, 2005 I understand that most of the gain is a result of an improved exhaust configuration. This particular VVT setup allows for sufficient 'internal' EGR (without the complication of a control valve and related plumbing), and a smoother idle than the non-VVT high output variant combined with the torque of the non-VVT low output variant. I just reread (several times) a post from 1/1/05 by a previous contributor that would bear out the exhaust configuration gains. At the risk of taking one sentence out of a fairly long and comprehensive post; "....Understand that none of the variable valve timing mechanisms "create" any power...." It appears the major benefit of VVT is a broader torque band. Plus cleaner / more simple and reliable EGR system through the use of exhaust cam timing. Jim Drive your car. Use your cell phone. CHOOSE ONE ! Link to comment Share on other sites More sharing options...
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