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Page 10, Thursday, December 23rd, 1971, MOTORING wiTH Mike Burgess * ~- I the staff of i I Under Sunday schedules, trains and connecting GO buses will operate at 90 minute intervals. Mr. Howard al so announced that new timetables, to become effective on Jan- uary 2, wil be available before the end of thismonthat ail rail stations and bus Whi1le they will not involve' any chan- ges In the train service, they wlIl contain minor adjus tments in theGray Coach-GO Transit bus schedules. Regular weekday schedul ing wil1l res- ume on January 3. One of the m o s t frequent questions put to me is, "What type of oil should I use ?" This question i s usualliy foliowed b y , "How often should I change the oil and filter?", and "Is it really necessary to change it THAT often? " Well now that 1've read a few hundred pages of technical information (give or take a'few hundred); talked to engineers and "technical experts" at Imperial Oil, C a s t r o i and Valvol ine; and meditated about my own experiences with various racing cars, I feel that I'm prepared to answer the previous questions. Stick te brand names The question of type remains unsolved because e a c h and every manufacturer wl I always push his own brand. Ail i c an say is, use a name-brand and you won'tgowrong. Pretty well ail passen- ger car oils are now of a very high det- ergentquality, and generally speaking, these type of oils are the only ones stocked by reputable service stations. There are non-detergent and mild det- ergentoils bearing the symbols 'SA' or 'S 1B.t available, but they are not rec- ommended for use in cars. To meet auto m an u f a c t u r er's requirements, y o u should use an oil of a reputable brand marked as suitable for A. P. 1. Service MS or SD or SE, and identified as "Meets CarMakers Sequence Test" (or similar phrase). Oil grades The viscosi ty of an oil, often referred to as the 'weight or 'grade', is the measure of its resistance to flow - the higher the viscosity, the thicker the oil WHITBY FREE PRESS an d t h e i e s s easily it flows. Higher viscosity oils help prevent thinning out of the oil during long periods of engine op eration at high speeds and tempera- tures. It would be ideal to use a straight 40 or 50 grade o i 11, except that in the cold weather these grades get so thick it would make cold morning starts very difficult. To solve this problem, multi- grade oils such as 20-40 are available and recommended for passenger car use. Personally speaking, I've always h a d a p r e ference for 20-50, for both passenger and race vehicles. Talking about cold morning starting . . . some motoristshave a bad habit of s t a r t ing a cold engine and 'revving it u p ' immediately before giving the oil a chance to build up pressure and lubri- cate the engine completely. This prac- t i c e c a u ses unneccessary wear at a very high rate. How often? As far as f r e q uency of oil changes isconcerned, l'm firmly convinced that you can't change the oil often enough! "Cummins", the manufacturer of diesel engines, has proved that I - 1½ ounces of dirt will completely ruin an engine. Think about that fact the next time you procrastinate on anoil change! If you're no t convinced yet, actual engine tests u s i ng r a d i o-active piston rings have shown that by extending the oil change interval from 1000 miles to 5000 miles, engine life can be decreased 53%. Look i ng on the brighter side, the American Petroleum Institute suggests th a t oiI be changed at least every 90 days or 3000 miles, but adds not to ex- ce e d the car manufacturers specified mi I e age change interval. More on this s u bj e c t and on oil filters next week, but remember - using the proper motor oi 1 isjust as important as using the proper fuel - perhaps even more so. If a poor grade of fuel is used the results a r e i m mediatel y apparent in poor en- gine performance. But using an inferior g r a de of oil can work un-noticed until1 e x t e n s i ve damage may be done to the engine. "Dust to Dawn" For my fellow rallyists, and anyone interested in seeing whatareal rally is ail about, an hour-long special entitled "Dust to Dawn" wil be shown on the fuil CTV network "Wide World of Sports", Saturday, December 25th' at 4:30 p. m. (E. S. T. ) This special covers the 4000 mile cross-Canada "1971 B. C. Centen- nia Car Rally", which incidentally, waswon by Haydn Gozzard in a Renault 8 Gordini. Before closing, I'd like to extend my verybest wishes for Christmas and the New Year. Please don't chance drink- inganddriving, it's cheaper in the long run to take a cab. 'Til next issue, Happy Motoring! VI JORDAN BOWLS WAY TO 1ST. PLACE Vi Jordan of Whitby walked away with first spot in the three-week roll-off for the Carlings Championships. Outbowl ed mens division The final round was played at Motor City in Oshawa, and when everything fin- ally quieted down, Vi was still 300 pins upon hernearestcompetitor. Sherolled a t r emendous 7639 for 30'games, even beating the mens' division. Ontario Dur- ham Five Pin Bowling Association is in- deed proud t o have her at the wheel of their ladies team. Doris Joll captured second pl ace with a f i n e 7 3 16. Bowmanvil1lle can al so be very proud of her. These people will represent Whitby zone in the Provincial roll-off in April, at O'Connor Bowl in Toronto. The teams will be as follows: S1N GLES: Vi Jordan, Joyce Cassel1s and Doris Joli. LADIES TEAM: Vi Jordan, Joyce Cas- sel îs, Doris Joi i, PatçChilderhose, On n i e E t c h er and Lorraine Duncan. These ladies will be coached by a long- time bowler, Lorraine Murphy. GO-TRAIN HOLIDAY SCHEDULES With Christmas Day, Boxing Day and New Year's Day fallI ing on weekends this year, GO Transit director W. T. How- ard today announced various schedules covering the holiday season. Regular weekday schedules will be op erated December 23 and 24, Sunday sc h ed ules wili apply on December 25 and 26; and the Hol iday Service sched- ule will be in effect on December 27. Re gular weekday scheduies will be operated Decem ber 28 through December 31, inclusive. Sunday schedules will be oper ated on bath January I and 2.